 After the Avengers collect all five infinity stones and manage to defeat Thanos, the gems are drained of their power by Ultron who threatens to exterminate the human race after possessing Arsenal's body.After the Avengers ultimately defeat Ultron, Ant-Man becomes a new member of the team.Around the end of season two, Thanos manages to escape from a galactic prison that was meant to contain him with aid of the Black Order.