LEGO DC Comics: Batman Be-Leaguered

LEGO DC Comics: Batman Be-Leaguered was a television special that aired on Carton Network on October 27, 2014.

Plot
Superman is forming the Justice League and is pressuring Batman to join. Batman declines the requests of Superman and the other heroes, seeing himself as a solitary vigilante. Once all the heroes of the newly-formed Justice League start vanishing, however, Batman must solve the mystery behind their disappearances.

Trivia

 * This was the first animated DC Super Heroes short.