The Super Hero Squad Show (2009)

S2E19 Planet Hulk! (Six Against Infinity, Part 5)

After Dark Surfer hurls Hulk into a portal, he finds himself on Sakaar, where he is seized by the Red King and forced to compete in brutal gladiatorial games. To escape the Red King's tyranny, Hulk allies with two fellow gladiators, Miek and Korg, as they plot their way to freedom.