Exiled into outer space, the Incredible Hulk lands on the planet Sakaar, which is ruled by the tyrannical Red King. After being sold into slavery, the Hulk becomes the planet's mightiest gladiator, but his new masters get more than they bargained for when he forges a bond of brotherhood with his fellow fighters: crafty insectoid Miek, ruthless rock-man Korg, ex-shadow priest Hiroim, and the noble-born rebel Elloe.