Gladiator vs. Superman: Battle Epic of the Mugen Multiverse!

Superman in an attempt to better relations between X-men and JLA plan to accompany them in their attempt to aid the Starjammers' to defeat Havok's brother & return Lilandra to the throne of the Sh'iar Empire. Before the X-Men depart the Imperial Guard intercepts them. While the Imperial Guard battle the X-men, Gladiator confronts Superman as he leaves the Fortress of Solitude to re-join the X-Men.