Alcmene, fearing she will lose her son, sends Hercules to Chiron's academy. Once there he meets up with Iolaus, a pain in the neck who he knew from his own village, Jason, The Crowned Prince of Corinth, and the female cadet Yvenna. Shortly after their introduction the friends set sail with some fellow cadets on a mission. They must search for the Golden Fleece in order to to save Jason's father who is on his death bed. Unbeknownst to the cadets is that Ares and Discord are the ones who put him there.
The trio stumbles across the Amazons once again and this time they invite the ladies back to the Academy. Unfortunately when they get there, the King of Athens arrives, claiming the Amazons are his property. This revelation doesn't sit well with the Amazons or Hercules, who must try to solve the situation without anyone getting hurt.
Tired of being called a wet blanket by his friends, Hercules requests the fire in Hephaestus's Olympian forge to make him more like his father. Although at first it seems to work, by making Hercules a much more laidback, fun guy, the side effects quickly put Hercules and his friends in danger. Iolaus and Jason must call on Hephaestus to help restore Hercules to his original self.
Hercules, Jason and Iolaus rescue a drowning man after he literally falls from the sky. Funny thing is the man has no idea who he is or where he came from. Hercules soon discovers that the man is actually his half-brother Hephaestus the God of Steel and that he's being punished by his mother Hera by turning him into a mortal man.
Hercules alienates his friends when he abandons them during a competition called The Games to team up with his two new brothers, Pollux and Castor, who are the mortal sons of Zeus. Things get worse for Hercules when Pollux cheats and injures Jason in the process causing the two to fight out their differences.
A young minstrel, Orpheus and his girlfriend, Eurydice lure Hercules, Iolaus and Lilith into what they claim is a place where the party never ends run by Bacchus, the God of Partying and Good Times.In reality, they soon learn, is that it is the realm of the Bacchae, the vampire-like followers of Bacchus, which they discover only after Lilith has been bitten and is slowly changing into one herself.
Hercules meets Lucius, another mortal son of Zeus, who tells him that he is on the trail of Pollux on the request from Zeus himself to deliver Pollux to death on the crime of the death of Castor, their brother. Hercules agrees to join him unaware that Castor was actually killed by Lucius, who has some ambitious plans that don't include his brothers.
Kora wins a bow that originally belonged to Artemis in an archery contest and plans to give it back to her. Hercules learns that Kora has been a servant of Artemis' after having been saved by the goddess years ago just when a thug in league with Strife steals the bow. Hercules attempts to help Kora retrieve it and free her from Artemis's debt.
Hercules and Iolaus set out with Jason to negotiate peace treaties between two kingdoms on the verge of war. On their way though they're sidetracked by Discord and Strife, who've been sent by Ares in order to distract the gang from the peace treaties. Herc and the gang come across a farmhand who bears a striking resemblance to Ares. Timor, the farmhand reluctantly agrees to help Hercules keep Strife and Discord away from Jason by posing as Ares and keeping them on their toes.
A shrewd politician hires an assassin to kill Jason before his coronation, in order to clear the path for himself to step in as king of Corinth. However, once Hercules learns of this plan he attempts to tell everyone but no one believes him. The problem is that its Prank Day and everyone thinks he's setting them up for a joke.
When a king offers his daughter's hand in marriage as a gift to Jason for his coronation, he pleads with Lilith to masquerade as his bride rather than marry someone he doesn't know or love. The problem is that the princess's jealous boyfriend shows up and is out to get Jason and it's up to Hercules to straighten out the whole mess while keeping the King from finding out and keeping Jason alive.
When a new cadet named Pythagrius claims he doesn't believe in the gods of Mount Olympus, Strife bets another god named Fatsus, that he can make the cadet believe in gods. Fatsus, who can only see prophecies of bad things to come, takes that bet and Strife's stunts cause a bigger threat as his attempts put Hercules and the academy in danger.
Hercules clashes with a new cadet named Theseus which starts out as a rivalry and ends up into a battle for survival when Theseus challenges Herc to a chariot race. The problem the race takes place next to the area known as The Forbidden Zone, where mortals go in but don't come out and its next victims may be Herc, Theseus and Iolaus.
Ares must enter a talent show at Kora's Inn when he learns that one of the prizes would complete his set of the Chronos stones, that enabled Zeus to defeat the Titans. The catch is a mortal must willingly give it to him, so with Strife and Discord in tow, he enters intent on winning and more than willing to cheat to get it, leaving Hercules and his friends to stop him.
Hercules, Iolaus, Lilith, Theseus and fellow cadet, Marco, find themselves trapped in a large area of sand known as the Dune Sea. It's known as forbidden and for a reason too, since it is inhabited by sand sharks who hunt anyone foolish enough to enter the area. Of the five cadets who entered, one will not leave.
It's Parents Day at the Academy and Iolaus hires two actors to pretend to be his parents so his real ones don't find out how poor his grades are and to not be disappointed in him once again. Things get complicated fast when the actors are revealed as thieves, Iolaus's real parents show up and Hercules must keep Alcmene from discovering Iolaus's deception and revealing the truth. Meanwhile Lilith's sister visits and announces she plans to take Lilith home.
When the Amazons attack the Academy with missile-like weapons forged by Hephaestus, it's up to Hercules to ensure that no one gets hurt and to figure out the real reason of the attack. The real threat is actually Ares, who has Cyane under his control and is orchestrating all of this for one reason: to destroy Hercules.
When Cyane falls ill, the Amazons seek out Hercules for his help. Amazon Queens have a special aura given to them by the Gods that allows them to communicate through a person's memories. Hercules must decipher how to cure Cyane when she uses this power on him and uses flashes of his memories to try to communicate with him.
Hercules, Iolaus and Theseus follow the advice of a mysterious old man and go hunting in an area rich with game. What they don't know, however, is that the area is Hera's Valley, which is protected by a dangerous monster. Another fact that they're unaware of is that the strange old man is really Zeus, King of the Gods, Hercules's father and that he is testing his son with this challenge.
The writers of Young Hercules, starring Ryan Gosling, reflect on writing for the syndicated series and writing for the legendary character.