Search and Rescue — Greg Cox

The X-Men--mutant protectors of a world that fears and hates them. The Avengers--Earth's mightiest heroes, the greatest super-team ever assembled. The teams joined forces to find out who has abducted two of their teammates. With the help of the incredible Hulk, they learn at last that their foe is the deadly Leader.

But the search for the gamma-powered evil genius proves more difficult than the two teams can imagine, for the leader has the awesome power of the Gamma Sentinels behind him--and another surprising ally as well!