Visiting the 30th Century, Superman has an unexpected hitchhiker on the trip, with that hitchhiker being none other than Ambush Bug! Causing havoc throughout the 30th Century, Superman seeks out the Legion of Super Heroes for assistance, only to find out they are off-world and the only assistance he can find is the Legion of Substitute Heroes! Can Superman and the Subs track down Ambush Bug, or will the well-intentioned Subs cause more damage than good?
Additional dialog by Paul Levitz. Breakdowns by Keith Giffen, and finishes by Kurt Schaffenberger.