With all of Villainville in jail, the Super Hero Squad is about to disband. Just then Captain Marvel disappears on his way to a peace mission, leading to hostility between the Kree and Skrull empires.

A mishap between Thanos' new Time Gem and the Scarlet Witch's hex powers sends her back to World War II, where she must assist Captain America and the Invaders in stopping Red Skull from launching a rocket that will destroy Europe.