The Avengers follows the story of Loki (Tom Hiddleston), the adopted brother of Thor, who arrives on Earth with a plan to steal the Tesseract, a powerful energy source. Nick Fury (Samuel L. Jackson), director of S.H.I.E.L.D., recruits the Avengers to stop Loki and his alien army. The team must put aside their differences and learn to work together to save the world.