Superman returns to discover his 5-year absence has allowed Lex Luthor to walk free, and that those he was closest to felt abandoned and have moved on. Luthor plots his ultimate revenge that could see millions killed and change the face of the planet forever, as well as ridding himself of the Man of Steel.

In the final days of World War II, the Nazis attempt to use black magic to aid their dying cause. The Allies raid the camp where the ceremony is taking place, but not before a demon—Hellboy—has already been conjured. Joining the Allied forces, Hellboy eventually grows to adulthood, serving the cause of good rather than evil.

Scientist Bruce Banner scours the planet for an antidote to the unbridled force of rage within him: the Hulk. But when the military masterminds who dream of exploiting his powers force him back to civilization, he finds himself coming face to face with a new, deadly foe.

With the world now aware of his dual life as the armored superhero Iron Man, billionaire inventor Tony Stark faces pressure from the government, the press and the public to share his technology with the military. Unwilling to let go of his invention, Stark, with Pepper Potts and James 'Rhodey' Rhodes at his side, must forge new allianc...