<Tr> <Th> 59 </Th> <Td> 6 </Td> <Td> "The Zippleback Experience" </Td> <Td> Jae Hong Kim </Td> <Td> Will Morey </Td> <Td> January 8, 2016 (2016 - 01 - 08) </Td> </Tr> <Tr> <Td_colspan="6"> The twins start an avalanche on the island where the riders are setting up a new watchtower and Hiccup and Toothless save Barf and Belch before they can go over a cliff . As a result, Barf and Belch become indebted to Hiccup and relentlessly follow him around and dote on him, prompting the twins to come up with ways to put Hiccup in danger so their Zippleback will save him and return to them . Hiccup is captured by Ryker and Dagur but is rescued by Barf and Belch who in turn are rescued from drowning by the twins, repaying the debt and returning everything to normal . </Td> </Tr> <Tr> <Th> 60 </Th> <Td> 7 </Td> <Td> "Snow Way Out" </Td> <Td> T.J. Sullivan </Td> <Td> Douglas Britton & Jack Thomas </Td> <Td> January 8, 2016 (2016 - 01 - 08) </Td> </Tr> <Tr> <Td_colspan="6"> The riders are testing new battle armor for their dragons when Astrid arrives with intel that the hunters are in search of the Snow Wraith to get a tooth to power the Dragon Eye . Astrid is separated from Hiccup in a snowstorm and finds Heather camped out on a nearby cliff . It is revealed that Heather is acting as a spy and she gave Astrid the information, but when Astrid proposes that they tell Hiccup the truth, Heather declines . Astrid brings the other riders to a cave where the Snow Wraith is hibernating, while Heather's attempts to mislead Ryker fail and he finds the cave on his own . Ryker meets with Hiccup demanding the Dragon Eye, but Heather manages to foil his plan to take it and Ryker instead seals them in the cave, using them to flush out three Snow Wraiths . When Hiccup attempts to take out Heather, Astrid intervenes and tells him and the others about Heather's plan to learn about the hunters' real leader, Viggo Grimborn, whom everyone is afraid of . </Td> </Tr>

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