Eli Shane's father tells Infurnus (In U.S., it's Burpy), his slug, to find Eli and give him a letter. Eli is 15 yrs old and goes to Slugterra for the first time. He gets gear from his father's base and meets Pronto.(a proud and knowledgeable molenoid tracker) Later he meets Trixie who saves him from a slug slinger. He joins the slug slinging contest and wins the qualification round and gets a Tazerling from his opponent which he names Joules .
Eli Shane wins all his battles and along the way gets new slug. It is time for the finals, but Eli loses after his opponent beats him with a dark slug given to him by Dr. Thaddius Blakk
The gang runs into a man with a ghoul slug from Dr. Blakk, they return home to a destroyed hideout. In order to replace all the gear destroyed Eli has to trade Joules. On the way back Eli decides to get his slug back only to find him missing......
When the hooligang enters the Quiet Lawn Cavern and think no one is tough enough to stand up to them, they get proven wrong by Eli and his gang
The gang decides to sign up for a weekend camp in an effort to learn a number of new moves without have to do all of the hard work, but things take a wrong turn when the campers and camp director disagree with Eli's opinion on the camp.
After watching a commercial for the Slugterra "Slug Run" Eli immediately wants to join despite Kord's warning that the race is for experienced Mech riders. As Eli and Pronto enter the cavern, Pronto sees an infamous mole who he calls his "Life.Long.Nemesis" even though hes never heard of Pronto. Just as the race begins a new racer, Vance Volt, joins at the last second and during the race Eli both saves and gains aid from him even though Vance is working for Blakk. With crystal worms, Shadow Clan, and a rare slug as the prize Eli has his work cut out for him and a surprise at the end of the race waiting.
The gang is out hunting a very speedy slug when during the chase their mechas malfunction. Back at the hideout Kord tries to figure out what the issue is but can't. He thinks it might have something to do with the new upgrades he got from his friends back at the forge(a factory of mecha beasts) so they head there to have it checked out. When they get there they find that the cave trolls that run the place have been captured and replaced by blacks men who are attempting to corrupt the cores of the mechs.
When Eli and the gang enter the Deadweed cavern, they discover a huge amount of El Diablus Nacho, the Dark Water Dr. Blakk uses to brainwash innocent slugs
The Shane gang interrupts an attack, caused by two of Dr. Blakk's employees Locke and Lode, on a shipment of Fandango slugs which are needed to revive a dying cavern after the native slugs fled out of the blue. While the gang heads to the cavern Eli learns that slug energy powers many, if not all, of Slugterra's caverns. Locke and Lode follow and cause a cave in that results in the gang traveling through Shadow clan territory, which leads to a chase deeper into their territory (thanks to Pronto) and a face off between one of the clan and Eli trying to reason with it. Just as the clan is ready to attack Burpy starts chirping frantically and the Shadow clan lets them pass, leaving Eli to wonder what did Burpy say and why did they listen to only him? After finally reaching the cavern and introduce the Fandangos to their new home, the slugs run away from something and before they could figure it out Locke and Lode make a smashing entrance. Eli and Kord face off against Locke and Lode, while Pronto hunts down the Fandangos and Trixie looks for the source of the slugs fear which is in the bullseye. After beating troublesome duo, Trixie informs the boys that the slugs are running from Dark Water that is seeping out from the cavern's monument so Eli asks Doc if he can handle that much to purify to which he replies with a serious and pumped look. As Doc tries to clean the Dark Water, he begins to lose energy just at that moment Pronto arrives... with 1 Fandango, which Eli says is enough to give Doc a boost and it does! Now the Dark Water is purged and the Fandangos and native slugs finds some new places to roost, the gang wonders how many other caverns are starting to be infected with Dark Water and what ever happened to Locke and Lode. They ran to regroup and question if they should now inform Blakk, just when Shadow Clan arrive and chase them.
Pronto gets captured for spitting out gum in a part of town that it is illegal to do that so the gang tries to free Pronto and the rest of the prisoners who were punished unjustly, but to do that they need to land a crazy trick shot the first try fails miserably but Kord remembers a master trick shooter Mario Bravado who ran into Doctor Blakk and betted into quitting trick shooting forever and lost so he never trick shotted again, they found him working in a Pizzeria called Ricochet Pizza because he uses his slug to ricochet of different things and make the pizza. Eli tries to persuade him into helping them with a master trick shot to free Pronto and the rest but instead Mario decides to teach Eli how to trick shoot by making pizza's and ricocheting the slug off different things to make the pizza, he eventually gets it and Mario joins him. Eli finds out that Pronto is on a speeding train heading into a tunnel and has to separate Pronto's wagon from the main express. Eli does a really good trick shot and does it he switches the path of Pronto's wagon but it leads to a dead end and Mario does a crazy trick shots and frees all the prisoners and opens the wagon and all but Pronto make it and pronto is falling to his death when Eli trick shoots a slug that catches Pronto and he lives. Mario goes back to his Pizza job again and Eli thanks him and offers him a place in the team but Mario said not now.
On a very slow and painful day (thanks to Pronto's home cooking) Trixie talks the gang into a slug hunt for the rare and near-extinct Enigmo slug. As they arrive they find out that they aren't the only ones hunting for the Enigmo, minus one couple waiting to simply buy it. Eli and his gang try to talk the other hunters to stop cutting down the forest because it is also destroying the other native slugs habitat, they agree that cutting it down is a bad idea and decide to simply smoke the Enigmo out with Flaringos. During the fight between them, Eli stumbles onto a deadly slug trap and a slug about to fall in it! Eli quickly saves it and returns to the dueling area to tell the hunters off for how dangerous their traps are and how the slug was almost seriously hurt. To Eli's surprise Trixie reveals that the slug he saved IS the Enigmo, at that moment the true owner of the trap, a feared slug hunter named Stocker, who demands the Enigmo and the trap back. When Eli refuses a shoot-out between the gang, Stocker and his slughounds ensues with Eli using the Enigmo and getting hit by it in a backlash, Trixie saves Eli and asks what did the Enigmo look like when it transformed to which he replies he wouldn't know cause his vision became distorted. Now the gang must find the slug, evade Stocker and his hounds and guide Eli around, during the hunt for the slug each member tries to save it from one trap after another since it seems to enjoy playing near or on them. Kord gets shot with a hundred slug tranquilizes, Trixie is caught in a cage and Pronto gets caught in a pit trap (ironically) leaving Eli to face off against Stocker and his hounds solo. After pulling off some good evasive maneuvers and using Chiller and Spinner to swing away from the hounds only to crash and get cornered by Stocker, who now has the Enigmo. With Eli keeping him busy, Burpy talks one of Stockers slugs to switch with the Enigmo and Stocker hits Eli with the slug and fix his vision. They face off one mor
While riding through the mystifying Flumes, a river that flows beneath Slugterra, the Shane Gang runs into Pirate Captain Malvolio Drake.
After doing days, maybe weeks, of enforcing the peace in Slugterra the gang head to the mall cavern to relax, play games and get a new bag for Pronto. Just as they arrive, they find the cavern empty and hear weird noises, which turns out to be a classic horror movie sound when they discover that the mall is crawling with zombies!
The gang is chasing one of Blakk's grunt when suddenly they get ambushed by many of them. They are saved by a new kid named Twist. He owns a Thuglett slug named Loki. They find one of the ghoul slugs storage area. Loki gets disguised as a ghoul slug and enters the facility. They get control over all the CC cameras to make their operation easier. They all disguise as Blakk's grunts and take away all the ghouls. El Diablos Nacho spotts them and chases them. They escape and with Doc's help, they cure all the ghouls. It is revealed that Twist works for Dr. Blakk.
Along with Twist, the Shane Gang plan to rob a train carrying the last of Dr. Blakk's Dark Water. They work out the plan and are trapped by Diablos Nacho. Kord realises that Twist works for Dr.Blakk and warns Eli. While in the fight, Twist traps Eli and duels him. He tells that he is an orphan because of Will Shane. When Eli has the advantage in the duel, he escapes. In the end, El Diablos Nacho is replaced by Twist by Dr.Blakk.
While watching a drive-in movie the Shane Gang get into a fight with the Hooligang, and in the heat of the battle they awaken an Ice Ogre which gets increased in size when they anger it. Eli loses the duel for putting the Ice ogre back to sleep. Eli saves the Manager of the Theatre (a molenoid) who advices him to use the Slyren slug which can put the Ice ogres back to sleep.Meanwhile, Trixie uses Billy to stop the Ice ogre by telling that he has a talent in acting in movies. Eli finds the nest of the slyren slugs. Suddenly, the whole nest stops singing and awaken all the Ice ogres. Eli uses the Slyren and put the ice ogres to sleep.
Danna Por, the daughter of Will Shane's old partner, Tom Por comes looking for treasure that she believes Will had hid from her father. She searches the hideout at night for the treasure, Eli and the slugs spot her and then she mentions about the treasure and leaves. The gang enthusiastically search for the treasure in the hideout when Eli finds it behind a photo frame. The chest is encased in a layer of molten magma. Only the Forgesmelter can melt the chest. They search for the Forgesmelter in the Cavern of Magma. Danna Por goes to place before them and scares away the whole nest of Forgesmelter slugs and leaves only one. She tells that Will Shane was working for Shadow clan. She gives him the slug on one condition that she should get a share of the treasure. But what they found in the was junk. Danna finds a shadow talker which allows the wearer to talk with the Shadow clan. Danna wasn't capable of bearing the power of the shadow talker. Eli wears for the shadow talker and talks with them. But he keeps it a secret from the gang. Danna flees with a device.
With the help of a Shane journal written by Eli's grandfather, a ridiculed adventurer who tries to take a trip to the surface with his group who tells that whoever believes him should meet him at a place. Eli hears about this and wants to go to the place and stop him. When sneaking from the hideout, Trixie and Kord spot him. So Eli convinces them to stop him from going there. When the gang goes to place, Eli take the adventurer to a room, tricks him and slips with the journal and returns to the hideout. When talking about the situation, the adventurer comes with a group of slingers as he didn't sling a slug in his whole life. The gang duels the group and in the middle of the battle, he burns the journal using Burpy. So, the adventurer leaves with grief. Eli then reveals the secret that he has come from the surface and shows the tunnel through which he came to Slugterra.
Burpy and Eli's other slugs have to get home while avoiding Locke and Lode.
Quentin, a mad scientist was experimenting with Roboslugs, a new generation of slugs which has the abilities of all the slugs of slugterra. He was running mad using the Roboslug in the town. So his sister ringed to the Shane gang to seek help from them. They end up with him in a duel in which Eli defeats him using the Enigmo slug. This was because Enigmo was a rare one and only a few people have seen it transform. As a result, Quentin didn't know about the abilities of Enigmo slug. He flees and returns with a giant robot and defeats them. Proud that he has defeated the Shane gang, he leaves the place. After the duel, his sister tells him about her brother's flashback that when he was a young boy, he went to a field trip with his family when his brother tried to get rid of him and pushed him into a room filled with slugs. Due to this incident, he developed a phobia on slugs. So he made the Roboslug to replace them with the original slugs. Then Eli plans to face Quentin using a giant robot they make using their Mecha beasts. Quentin has the advantage in the fight as he was using the roboslugs. The Shane gang's robot was losing all it's parts and collapsed. Eli and Quentin were about to start a duel when Quentin's brother and sister threw a bunch of slugs at him. He started running about in the place when Eli shot a Flopper slug named Noodles at him. Noodles saves him by ordering the slugs to save him from his robot when it was falling on him. He develops a liking on Noodles and resists his phobia. He was sent to jail when Dr. Blakk offered him an opportunity to join him and give his roboslugs for ghouling. Quentin accepts the opportunity.
Shinai, The unbeatable master of slug slinging had a fight in a hotel. The Shane gang were passing and Eli meets her.Trixie mentions that she is the unbeatable master. She then leaves the hotel. The very same night, the gang talk about her and want to get some training from her. Eli was very eager that he left early in the morning to her home. He was surprised to see a lot of slingers who wanted to get trained. She helds a competitions in which a majority slingers were disqualified. But they refuse to leave. So she performs the legendary fusion shot using her slugs, Sonikin and Inkdevil and throws them out. She held a tournament and whoever wins gets trained from her. Twist comes in a disguise. Twist and Eli go to the finals. An hour before the finals, Eli talks with her that Twist shouldn't get trained from her. She tells a flashback that Will Shane and Blakk came to her. She trains he one who wins in the duel. Will wins and gets trained. Blakk become enemy to Will and starts experiments with Ghouls. Will could've known the secrets of slugterra even without her help. She feels guilty that Blakk turned evil because of her. When Eli and Twist were about to duel, Blakk interferes with some soldiers, a bull mecha and a new gattling blaster. Sinai duel Blakk, Eli duels Twist and the gang duels the soldiers. When Twist is defeated, he flees but disguises as Blakk and fights with Shinai. She defeats him using the fusion shot and the disguise wears off. Blakk kills her by shooting a Boon Death (Ghouled Boon Doc) at her on the back. Eli asks help from his Boon Doc but it was of no use. Eli uses his blaster and defeats Blakk by performing a fusion shot with Burpy and Joules. Blakk leaves the place while the gang feel sad about her death. Even her slugs also go with her.
Eli and his gang have to stop a drill that is in an underwater cavern.
Danna uses the device she stole from the treasure chest to teleport from one place to another and becomes a thief. She steal things from everyone, even Trixie's camera. By mistake, she steals Blakk's blaster. So Blakk appoints a Gentleman to get his blaster and Danna alive.Gentleman is an experienced slinger who uses Geoshard slugs to crystallize his opponent. Knowing this, Eli tries to save her from the gentleman. The gang blackmails him to change the plan. When he confronts her he duels her. Blakk and Eli come later to the duel . Gentleman shoots her in such a way that she doesn't get crystallize completely. The crystallized Danna falls into a river. Eli saves her and escapes. She gets cured using Pronto's Slyren. Eli thinks that the device will be safe with Danna.
Lumino Cavern has been invaded by a swarm of Neurotox ghoul slugs that have created a toxic cloud that’s attacking the residents. The Shane Gang must brave an inescapable maze to locate Blite, the only man who can help them.
Eli and Kord have been trying to create a fusion shot which consists of two slugs being shot at the same time using both of their powers. In order to make it work, they’ll need to travel to Scrap Heap, a junk yard cavern protected by Boss Ember and his Scrap Force.
Eli and the Shane Gang become trapped in caverns underneath SlugTerra and discover a new type of danger that is threatening to escape.
Armed with his powerful new weapon the Gatling Blaster, Blakk's unstoppable battle train threatens to run roughshod over all of Slugterra - unless Eli can master his new Double Barrel Blaster and come up with a powerful fusion move in time to stop it.
Kords' troll friends compete in the Slugball but when they are injured, it's up to the Shane gang to find out why the battle field is infested with high-tech traps, and come out victorious.
It's up to the Shane gang to help The King duel with Dr. Blakk to save his home cavern.
The Shane Gang's been captured by the zombifying Mr. Saturday. Locked up in Stalagmite 17, they are helpless as Dr. Blakk begins the trip there to collect them. Only one hope remains the two members of the Shane Gang Saturday didn't capture: Pronto and Burpy. Can this mismatched pair pull off an impressive prison break?
The Shane Gang has to find a Map of Slugterra which shows every Secret Thing In Slugterra before Diablos Nacho gets it who works for Dr. Blakk.
The Shane Gang must use every bit of skill they have when they are lured into an elaborate game by a Twisted villain calling himself the Game Master.
Burpy is very sick and Eli has to take Burpy to the Lightwell with the help of his slugs. Will he be able to help Burpy or will Burpy actually die.
When a mysterious creature begins draining the energy from all the slugs in a distant cavern, the residents offer a rich reward to whoever can stop it.
The Shane Gang must transport Dr. Blakk to Stalagmite 17 prison.
While his henchmen attempt to spring him from prison, Dr. Blakk tells Eli his life story and describes his rivalry with Will Shane.
Seen through the eyes of the slugs, the Shang Gang must liberate a cavern with the help of a new member of Eli's team a Blastipede slug named Rookie.
Dr.Blakk finds a way to make his ghouls stronger thanks to a special device. Hoping to find a counter-measure,the Shane Gang looks for Red Hook. Entering Quiet Lawn, they instead encounter Twist and Blakk's men. Eli enables his friends and slugs to escape-but gets captured by Twist and Diablos. While escaping from imprisonment in Blakk's base,Eli soon finds Red Hook, willingly working for Blakk by making the device. Red Hook upgrades Eli's blaster by fitting one of the devices onto it,enabling them to escape with Red Hook's newest gizmo-the accelerator.
The Shane Gang assault Dr. Blakk's stronghold while Pronto is given the mission to contact the Shadow Clan in order to repel Dr. Blakk and the Darkbane once and for all. When Eli, Trixe, and Kord arrive they find Blakk and his goons waiting outside. Eli charges in to destroy the Terraportal but already finds it active and is forced to duel Blakk one on one while Trixe and Kord duel everyone else outside. However the gangs blasters can only handle MegaMorph energy before a cooldown and suffer defeat due to Blakk and the Barkbane not having this handicap for some reason. Nacho damages Kord's Mechabeast causing him to go in a rage resulting in a brawl, leaving Trixe to duel the rest of the Darkbane alone. Meanwhile Eli gets shot through a wall and separated from his accelerator upgrade. He responds with a Fusion Shot that miraculously defeats a Megamorph however the Terraportal is almost finished. Trixe loses her blaster and is forced to use Kord's and literally gets knocked off her feet due to the recoil. Pronto arrives with the Shadow Clan, defeats the Darkbane and everyone charges into the portal room for a last stand. The portal is finally complete and the Darkbane army teleports through. In the battle Pronto remembers that he also brought Doc (the healer slug last seen in "What Lies Beneath") as well and Eli uses him to shut down the machine. Doc's powers actually puts the machine in reverse sucking all of the Darkbane back to the Deep Caverns and Eli and Blakk get sucked in as well. The Shadow Clan Leader attempts to shut down the portal by jamming the gears while Eli and Blakk continue fighting on the trip down. Eli escapes riding on Burpy and the Shadow Clan thank the Shane Gang for stopping the Darkbane. The episode closes at the Drop to the Surface where the gang think Eli is leaving but instead he uses Burpy to seal the entrance just before Blite appears riding on a dinosaur.
Eli has added some awesome new slugs to his arsenal: the ELEMENTALS. But the Elemental Slugs are ancient, extremely powerful, and temperamental, and Eli can't control them. Junjie, the newest member of the Shane Gang, has the solution: Eli must learn SLUG FU, the ancient form of slugslinging that Junjie mastered when he lived in the Eastern Caverns. Slug Fu is the art of guiding and controlling a slug in battle—a skill that only the greatest slugslingers can master.
Eli and the Gang find a way to take Junjie back home to the Eastern Caverns and discover trouble waiting for them when they arrive.
Upon returning to the Outlaws’ jungle camp, the Shane Gang suffer a sneak attack from the Emperor’s Underlord Holt, who steals almost all of their slugs and loads them onto the Dragon Train for transport to the Emperor. With precious few slugs to use as ammo, the Shane Gang must be extra resourceful to get them back.
In an epic battle, Junjie and Eli confront the Emperor and the Dai-Fu as the fate of the entire Eastern Caverns hangs in the balance!
While Junjie struggles with the knowledge of what he did during his time as the Dark Slinger, the Shane Gang meet a former servant of the Emperor who wants to turn over a new leaf. But can the Shane Gang help a bad guy learn to do good?
The Shane Gang decides to use Pronto as bait when they arrive at a cavern overrun by thieves. But their plan goes awry when Underlord Holt arrives and commands the thieves to work together to bring him Pronto - dead or alive!
When the Shane Gang travel to the Auroris Mine, they discover a legendary monster carved out of stone attacking the mines—the Pyritor. Trixie studies the legend to help them locate the creature’s home and put a stop to its reign of terror, but first they must confront the true nature of the beast, and its assistant!
Determined to up his game against Stone Warriors, Kord visits a famous Eastern Technician for help creating a new blaster upgrade.
Thieves steal precious cargo; the gang discover who The Giver really is.
The Emperor sets to work creating Unstoppable Warriors to reclaim the Eastern Caverns.
The gang recruits their friends and some enemies to help them take down the Emperor
As the Shane Gang return to the 99 caverns from their Eastern adventure, a dispute erupts between them and the Shadow Clan, threatening to shatter the hard-won peace in Slugterra. Eli and the Gang have their hands full dealing with the antics of the usual thugs, plus growing hostility from their former allies. So when Tad and his slug Pieper—who have just arrived from the Surface—lend a hand with Pieper’s amazing powers, Eli welcomes a new team member. But soon this newcomer casts his own shadow on the chaos.
