<Tr> <Th> 29 </Th> <Td> </Td> <Td> "Valhalla Can Wait" </Td> <Td> Tim Eldred </Td> <Td> Jacob Semahn </Td> <Td> October 12, 2014 (2014 - 10 - 12) </Td> <Td> N / A </Td> </Tr> <Tr> <Td_colspan="7"> Thanks to the tricks of Loki, Hulk and Thor are tricked into a battle and transported to Valhalla to find out who is the strongest once and for all . But under Hela's rule, only the loser of their contest may return to Planet Earth while the winner will become her consort and champion . While this is happening, Loki uses Hela's horn to unleash an army of skeletons to invade Earth . </Td> </Tr> <Tr> <Th> 30 </Th> <Td> </Td> <Td> "Ghosts of the Past" </Td> <Td> Phil Pignotti </Td> <Td> Todd Casey </Td> <Td> October 26, 2014 (2014 - 10 - 26) </Td> <Td> N / A </Td> </Tr> <Tr> <Td_colspan="7"> Red Skull has information that could help the Avengers save the world from Thanos, but an intruder kidnaps Red Skull before they can retrieve it . Captain America discovers that the trespasser is none other than his old partner Bucky Barnes (now the Winter Soldier) who is back seeking revenge on Red Skull . </Td> </Tr>

Avengers assemble secret wars - season 4 episode 15