Superman [Clark Kent]; Robin [Dick Grayson]; Migg (alien); Kartel (alien); Batman [Bruce Wayne] (flashback, cameo); Alfred Pennyworth (flashback, cameo); John Grayson (flashback, cameo); Mary Grayson (flashback, cameo); Marty; Davy
Synopsis
Aliens teleport Superman, Robin and two brothers from Hudson University to their alien world to use Superman as a living battery to power their immortality machine.