<Tr> <Th> 51 </Th> <Td> 11 </Td> <Td> "Have Dragon Will Travel, Part 2" </Td> <Td> T.J. Sullivan </Td> <Td> John Tellegen </Td> <Td> June 26, 2015 (2015 - 06 - 26) </Td> </Tr> <Tr> <Td_colspan="6"> Hiccup manages to rescue Heather, and though she is still determined to take revenge, Hiccup persuades her to leave it for another day . On the way back to Dragons' Edge, Heather reveals that the parents she lost were adoptive, and all she has to remember her birth father is an old horn . When they return, the riders re-welcome Heather while offering their support and she and Astrid take the time to bond . Together they meet with Johan who reveals Dagur's plans to purchase new dragon - proof ships and weaponry, and they convince the riders to launch a surprise attack . They manage to successfully capture Dagur, but Hiccup intervenes before Heather can kill him, revealing that her horn was a gift from Stoick to Oswald the Agreeable, her father, meaning that Dagur is her brother . Dagur offers her the chance to join with the Berserkers, but she refuses . In the end, Heather decides to leave, saying she has much she needs to figure out . </Td> </Tr> <Tr> <Th> 52 </Th> <Td> 12 </Td> <Td> "The Next Big Sting" </Td> <Td> T.J. Sullivan </Td> <Td> FM De Marco </Td> <Td> June 26, 2015 (2015 - 06 - 26) </Td> </Tr> <Tr> <Td_colspan="6"> Hiccup is testing a prototype wingsuit when the riders come across an injured adolescent Speed Stinger . Hiccup elects to nurse it back to health but Snotlout opts to leave it on account of its paralyzing abilities . The riders take it back and nurse its leg to health when Fishlegs discovers the Stinger has gained webbed feet as a result of evolution . Snotlout and Ruffnut kidnap the Stinger and take it back to its pack when they and the rest of the riders are attacked by the other Speed Stingers who have similarly evolved . The young Speed Stinger decides to help the riders chase off the pack, and with its help and Hiccup's new wingsuit, drive the Stingers back across the sea . The young Stinger is torn between its pack and the riders, but Hiccup convinces it to go back with its family . </Td> </Tr>

How to train your dragon race to the edge season 4 episode 7