Injustice

On Earth Twenty-Two, Superman hears a second heartbeat coming from his wife, Lois Lane, and realizes that she is pregnant. Simultaneously, Batman arrives in Metropolis in pursuit of the Joker, who has stolen Kryptonite from S.T.A.R. Labs. Alongside Harley Quinn, Joker kills Jimmy Olsen, kidnaps Lois, and steals a nuclear weapon, which they connect to a heart rate monitor surgically attached to her heart. Upon hearing of Lois' capture, Superman and Batman call upon the other members of the Justice League to find her. While searching the city, Flash finds the Scarecrow dead in his lab and his supply of fear toxin missing, before being killed by a trap laid by Joker.