Brash adventurer Peter Quill steals a coveted orb and becomes the object of a relentless bounty hunt. To evade his enemies, Quill forges an uneasy truce with Rocket, a gun-toting raccoon; Groot, a tree-like humanoid; the deadly assassin Gamora; and the revenge-driven Drax. But when Quill discovers the true power of the orb, he must rally his ragtag band of misfits for a desperate battle that will decide the fate of the galaxy.