"World War Hulk" follows Hulk's return to Earth, enraged and seeking revenge after being exiled. Hulk, accompanied by his alien army, arrives in Manhattan and wreaks havoc, defeating several superheroes, including Iron Man, Doctor Strange, and the Fantastic Four. The story culminates in a massive battle at Madison Square Garden, where Hulk nearly kills Black Bolt and declares himself the king. Ultimately, Sentry confronts Hulk, but their fight only causes more destruction, leading Hulk to realize that his anger and quest for vengeance are causing immense harm.