Exiled by his parents to the depths of his room, Franklin has always used his father''s inventions to keep himself entertained. Now Franklin has returned to the lab to wreak more accidental havoc on the FF, the Hulk, the Marvel Universe -- and anyone else who gets in the way. More reckless than ever, accompanied by his robotic babysitter H.E.R.B.I.E., Franklin may (unintentionally) tear the planet in half!