When Hiccup and Toothless are kidnapped and Toothless is forced to fight other dragons for entertainment, the rest of the dragon riders must save them before it's too late.
When things don't go well while Fishlegs is in charge, he gets another chance to prove he has what it takes to be a leader.
While trying to take care of unfinished business, Hiccup and Toothless are lured into a trap. An unlikely rescuer comes to their aid.
After learning that Fishlegs has been secretly communicating with Heather, the gang invites her to the Edge to convince her to join the Dragon Riders.
After Astrid makes an alarming discovery, her life comes to depend on a dragon everyone thought was extinct. Her pals race against time to find it.
When the Dragon Riders fly to an island on a vacation, a small creature there has a special effect on the dragons.
When a mysterious dragon attacks Spitelouts storehouse, Spitelout and Stoick have different ideas on what to do next.
A wounded Fireworm seeks the Dragon Riders' help in protecting a precious treasure trove from an unfamiliar creature with strange and slimy powers.
Buddy Valastro and his family's road trip continues as they reach the Louisiana Bayou. There, they tour swamps full of live alligators and make some extraordinary food stops, starting with fried shrimp and oyster po' boys at the Olde Tyme Grocery in Lafayette, La. Next, Buddy takes the cooking into his own hands and prepares boudin, a Louisiana-style spicy sausage filled with rice and vegetables. The search for eccentric local foods continues with a stop at Dark Roux for elevated southern classics, then to their last stop: Crawfish Town USA!
Megan befriends Chido and forms a band with her called "Character Select", but struggles to keep their friendship and band a secret.
Wayde & Brett make a tank for world famous artist DJ Redfoo of the band LMFAO. The guys attempt their very first DJ booth aquarium. Will this tank get the party started or will Wayde and Brett fail to make this Party Rock?
Ian Roussel attempts to complete the build of his Wld Show Car.
The Ramsay family gets into American football, with Jack, Megan and Holly going training with a professional team called the Inglewood Blackhawks. later, they enjoy some cheerleader training with the athletic LA Dream All Stars, and learn how Americans support their teams. Meanwhile, Matilda makes a dinner to celebrate the sport, kicking off with Sloppy Joes and Touch Down Dip and Chips, followed by cherry pie.
Harvey imagines himself and his friends in a magical steampunk world, but things come crashing down when Harvey is blamed for breaking a floating city
A wounded Fireworm seeks the Dragon Riders' help in protecting a precious treasure trove against an unfamiliar creature with strange and slimy powers.
When things get out of hand while Fishlegs is left in charge, he seizes another chance to prove he has what it takes to be a leader.
Hiccup's and Snoutlout's fathers put aside their differences and work with their sons as a team to defend a storehouse against an unusual invader.
Hiccup reluctantly allows the Dragon Riders to go to a deserted island for a much-needed vacation, but the getaway has an odd effect on their dragons.