Dr. Strange guest stars when a dark entity crosses over into our dimension, seeking a body strong enough to house its energies.
Doctor Strange battles an alien Slayer in another dimension. The alien escapes to earth and looks for a powerful form to take over. He possess Banner and tries to take him over. Strange arrives and takes Banner and She-Hulk to his mansion. They, then, journey into Banner's mind to battle the creature.—Shatterdaymorn