Rivr
| 1: Enemy of My Enemy |
| Jun 24, 2016 |
| While trying to take care of unfinished business, Hiccup and Toothless are lured into a trap. An unlikely rescuer comes to their aid. |
| 2: Crash Course |
| Jun 24, 2016 |
| A wounded Fireworm seeks the Dragon Riders' help in protecting a precious treasure trove against an unfamiliar creature with strange and slimy powers. |
| 3: Follow the Leader |
| Jun 24, 2016 |
| 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. |
| 4: Turn and Burn |
| Jun 24, 2016 |
| 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. |
| 5: Buffalord Soldier |
| Jun 24, 2016 |
| 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. |
| 6: A Grim Retreat |
| Jun 24, 2016 |
| 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. |
| 7: To Heather or Not to Heather |
| Jun 24, 2016 |
| 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. |
| 8: Stryke Out |
| Jun 24, 2016 |
| When Hiccup and Toothless accidentally land in a Dragon Hunter trap, they find themselves the newest contestants in a gladiator-style arena. |
| 9: Tone Death |
| Jun 24, 2016 |
| Hiccup and his team rescue a dragon egg and bring it back to the Edge, where it hatches to reveal an ear-splitting surprise! |
| 10: Between a Rock and a Hard Place |
| Jun 24, 2016 |
| The gang investigates why Viggo's men are mysteriously shipping marble blocks from a quarry. Next, they try to save two dragons being used as slaves. |
| 11: Family on the Edge |
| Jun 24, 2016 |
| When Dagur unexpectedly shows up, Hiccup scrambles to prevent him and Heather from discovering each other's presence. |
| 12: Last Auction Heroes |
| Jun 24, 2016 |
| Snotlout is sent on an undercover mission to Viggo's dragon auction as part of a plan to rescue the dragons and stop Viggo from getting richer. |
| 13: Defenders of the Wing, Part 1 |
| Jun 24, 2016 |
| When Viggo offers Hiccup a truce, the wary Dragon Riders investigate and find a potential ally in their fight against the Dragon Hunters. |