When the mysterious and unpredictable power source named the tesseract is stolen from S.H.I.E.L.D. by Loki, a god from another realm, it is up to the Avengers, an elite team of agents and superheroes to unite and stop his infinite wrath. However, when it is found that Loki has had more help than intended, the Avengers, along with Nick Fury must work together to stop not only one wrathful god, but an evil queen as well.