Bruce Wayne becomes concerned when some of his richest friends are seduced into a new age brotherhood by the mysterious cult priest Nostromos. So, he joins the Brotherhood in an attempt to expose Nostromos for who he really is. However, Batman will soon find out however that Nostromos himself is only the pawn in Queen Beryl's own plans to capture the Chaos Emeralds as part of an endgame Bowser has in mind...