When Hank accidentally knocks himself out after a failed lab experiment, a petty thief makes off with his costume and begins to use the Giant-Man powers to commit crimes.; The Hulk is captured in unbreakable restraints but slips through them when he turns back into Banner. Hearing that his buddy has been captured, Rick leaves Cap's side to go help his original super pal. The mysterious Leader sends the Chameleon to gamma base to find out what happened to an agent who didn't report back in (probably because he ended up falling down a hole in a robot suit last ish). Talbot and Banner begin their less than friendly rivalry. The Chameleon impersonates Banner and tries to steal a gamma grenade using Betty as a hostage but the Hulk thwarts his plans.