Loki, after his return to Earth, decides the Avengers are amusing to toy with; Tony, after Loki's fucked with him one time too many, decides that he's going to understand the trickster god if it's the last thing he does; both of them think they have the situation under control.
One of them has to be wrong.
- Part 1 of Seven Devils
Sometimes, understanding a god is actually more dangerous than fighting one.
(Or: In which Tony figures out something important about Loki's motivations, Loki is only marginally less dangerous as an ally than as an enemy, and the Avengers may have to handle a new threat that they're entirely not prepared for.)