While birdwatching, Marshall and Cap'n Turbot spot a kitten stuck in a mountainside tree.
As the Riders investigate why traders are disappearing from Northern Markets, Hiccup and Snotlout fall victim to a treasure-hoarding dragon.
While trying to stabilize the volcano that threatens to destroy Dragon's edge, the Riders discover troubling evidence of new Hunter activity.
When SnotLout is rescued from a storm by a tribe of winged women, he thinks he's gone to Valhalla -- until he learns he's going to be their dinner.
Pete and his team descend upon Virginia for the first time to bring the tree house revolution to Bella Rose Plantation; drawing on the architectural innovations of Thomas Jefferson, Pete designs a luxurious two-story tree house with colonial columns.
The Riders accept an invite to Berserker Island, where their reunion with Heather, Dagur and a young familiar face is interrupted by a sudden revolt.
Booker, Nia, and Levi convince Raven and Chelsea they are responsible enough to watch themselves while the moms celebrate a “moms’ night out.”
Johnny confronts his nemesis face to face when Delle Seyah suddenly arrives to set terms of war via parley.
Jimmy Carr hosts the show while guest captain Kathy Burke and Roisin Conaty take on guest captains Johnny Vegas and Bob Mortimer. John Cooper Clarke is in Dictionary Corner.
The Raza's crew attempt to unite Ferrous' enemies and put an end to the corporate war before the new fleet can be used.
Ray from Swindon is fed up of dating bad boys and is looking for a nice naked guy. Barman Jimmy wants to settle down in Bristol. Can he find his perfect partner in the buff?
Wynonna is running out of time, and is desperate to defeat the widows before her fate is sealed.
K.C. lies about losing the weather machine, and sets up her own mission to get it back.
Ozen tasks Riko and Reg to survive alone outside the Seeker Camp. Do they come out alive and unscathed? Or does the Abyss have a dirty trick up its sleeve?
Tick and Arthur have a run-in with local villainess Miss Lint and her gang, who will stop at nothing to get back the mysterious supersuit that Tick took from them and gave to Arthur. Dot, Arthur's paramedic sister, moonlights for an unsavory business.
Tick and Dot help Arthur try to control his flyaway supersuit as the Pyramid Gang pursues them. Miss Lint has an unexpected caller.
Tick and Arthur try to use Ramses to prove that the Terror is alive and run into trouble. Miss Lint takes the advice of an old friend.