5. Planet Hulk
When Reed Richards, Tony Stark and Dr. Strange decide the Hulk is too dangerous for earth, our mightiest heroes trick him into entering orbit to destroy a rogue satellite, and then use a shuttle to jettison him from the solar system. They intended for him to land on a peaceful planet, but the shuttle passes through a wormhole on its way. As Hulk listens to a recording from the Illuminati explaining their actions, his shuttle crashes on the planet Sakaar. Weakened from the crash, Hulk is fixed with an obedience disk and taken into slavery. He is forced to fight gladiator battles for the planet's emperor, the Red King. Hulk forms a war-bound pact with his fellow gladiators, overthrows the emperor and becomes the planet's king.