The X-Men [Professor X; Cyclops; Marvel Girl [Jean Grey]; Angel; Iceman; Beast]; The Brotherhood of Evil Mutants [Mastermind; Magneto; Toad; Quicksilver; Scarlet Witch]; Namor, the Sub-Mariner
Synopsis
Xavier reads a news story about Namor and wonders if he is a possible mutant. Magneto comes to the same conclusion and invades the Sub-Mariner's realm with an invitation to join his Brotherhood. Enchanted by the Scarlet Witch, Namor agrees. The X-Men attack and, during the ensuing battle, Namor decides not to join either team, mutant or no.
Hulk [Bruce Banner]; Thunderbolt Ross; Betty Ross; Banner Bot
Synopsis
Bruce creates an indestructible robot which is able to withstand the power of a nuclear blast but the stress of completing it on schedule causes him to transform into the Hulk and he leaves this massive weapon of awesome power unattended. So of course, a foreign spy who has been hanging around gamma base jumps into the robot and takes off. The Hulk tries to stop the robot but can't and once he is worn out from the battle, he transforms back into Banner. Found lying in the desert by Ross and Betty, Bruce vows to build a bigger and better robot to take down the first one.