The Onyx Family learns that Bigfoot has been captured by The Shadow Room! When Shiloh and Sinead can't bring him to safety, Shasha and Shalom attract Bigfoot with a pop-up shop for giant shoes.
Shiloh and Sinead go to Puerto Rico to save the goat-scaring Chupacabra from a monster hunter; Shiloh must use his love of pranks to save the beast and get off the island before driving Sinead crazy.
The Onyx Kids find another sighting of the one monster that has always eluded them: the Yeti; when the other Onyx Kids are reluctant to try again, it's up to Shasha to save the Yeti once and for all.
The Onyx Kids' have a problem when Van Pyre, surfer and vampire, scares off beachgoers that run away before picking up their trash; they'll have to track him down before Tad Helsing gets to him first.
Shasha loses Shiloh on a mission to track down a legendary haunted scarecrow; when crazy crows turn out to be the real bad guys, Shiloh and the scarecrow have to find each other to find their way out.
Shasha and Shiloh head to Australia in search of a supernatural frog, the "Tikalik", that's causing a massive drought; they just have to make the frog laugh-surely Shiloh has a trick up his sleeve.
Shiloh and Sinead go to Puerto Rico to save the goat-scarinA clown terrifies Shasha-on her birthday; Shiloh tries to wash off its make-up, but it backfires and clowns take over Atlas Island; Shasha must face her fears and beat them herself.g Chupacabra from a monster hunter; Shiloh must use his love of pranks to save the beast and get off the island before driving Sinead crazy.
There's a terrifying three-headed hound on the loose in NYC, and Shalom and Shasha must track it down; when they find the beast, all is not as it seems; there's a best friend behind the scary beast.
Sinead and Shiloh go to the Grimmie awards to save the musical act Sheé from the monster hunter Tad Helsing; they help the Banshee fine-tune her vocals and explore the art of rap music.
Shasha and Sinead investigate a suspicious inventor at Pet Toy Con; when they discover all the inventors at Pet Toy Con are missing, it's up to them to find the culprit and bring them into the light.
Sinead and Shalom head to a dojo to save an annoying spider-girl that's terrorizing her fellow ninja; there's only one hitch along the way: Tad Helsing is back, with his sidekick Biscuit.
The Onyx Kids get a mysterious call from Scotland: it's Nessie, and she wants out of Loch Ness; Sinead and Shiloh encourage her to jump over the narrow straight to freedom and on to Atlas Island.
Rita and the Onyx Kids leave Mirthell for the day, but his me-time is interrupted! Later, the Onyx Kids enter Mirthell's dreams using a Slumber Jumper, and find a mummy who stole their toilet paper.
The Onyx Family discovers a mischievous elf while arguing about hot dogs! Later, they investigate a troll sighting at a company headquarters and confront a cyclops causing destruction in Greece.
Mirthell and Shiloh convince a smelly monster to take a bath, and Shalom investigates spooky noises under Bigfoot's bed! Plus, the Onyx Kids discover a Loogaroo who wreaked havoc at a restaurant.
Sinead and Shalom investigate a power outage caused by a unicorn! Later, the Onyx Kids can't find Sheila the kraken on her birthday, and Rita tells the tale of her very first monster rescue mission.