Now That Infinity War Is Upon Us, Here's Where All the Avengers Are

Albeit a trickster at heart, Loki ends up helping his brother, Thor, defeat their sister, Hela, by summoning the fire demon Surtur in Thor: Ragnarok. The downside to summoning a fire demon to defeat your big sister is that it effectively brings about doomsday. While managing to get the Asgardians on a spaceship to Earth, Thor and Loki confront a large spacecraft, which is Thanos's Sanctuary II.