After a tornado rips through Villainville, Captain America and the Super Hero Squad decide to help and are joined by Dr. Doom and the robot Sentinals, but the Super Heroes are in trouble when Dr. Doom and the villains turn on them.

After his storm destroys Dr. Strange's magic plants and his hammer breaks the Silver Surfer's wave pool, Thor begins to lose confidence in himself and, when General Ross assigns him to a special mission, questions whether he still has what it takes to be a hero.