Tales to Astonish, Vol. 1

Giant-Man Versus the Wonderful Wasp - Hank Pym is developing a formula for rapidly growing plant life to feed the poorer countries on Earth when a cat burglar catches him off guard. Stealing his suit, the burglar goes on a crime spree in the persona of Giant-Man.

Enter... The Chameleon - The Chameleon has been hired by "The Leader" (not that one) to track down the first agent sent out to gain information from Gamma Base and steal the robot. The Chameleon almost gets away with it too, but he makes the mistake of threatening Betty Ross (who is referred to as Miss Brant on two occassions.)