Batman v Superman: Dawn of Justice : Fearing the actions of a god-like Super Hero left unchecked, Gotham City’s own formidable, forceful vigilante takes on Metropolis’s most revered, modern-day savior, while the world wrestles with what sort of hero it really needs. And with Batman and Superman at war with one another, a new threat quickly arises, putting mankind in greater danger than it’s ever known before. Wayne attends Luthor’s party at LexCorp, where he meets mysterious antiques dealer Diana Prince, and retrieves encrypted data from the company’s mainframe. While decrypting the drive at the Batcave, Wayne has a dream of a post-apocalyptic world, where he leads a group of rebels against Superman. He is snapped out of the dream by an unidentified time traveler, who warns him of Lane’s crucial role in the distant future, and urges him to find “the others”. Wayne later realizes that Luthor is not only experimenting with kryptonite, but also investigating metahumans. One of them is Prince herself, who is an immortal warrior. Wayne admits to Alfred Pennyworth that he plans to steal the kryptonite to weaponize it, should it become necessary to fight Superman.
Luthor orchestrates a bombing at a congressional hearing where Finch is questioning Superman on the validity of his actions, which have resulted in deaths of civilians. The bomb kills dozens of people, including Finch. Frustrated by his failure to save people, Superman goes into self-imposed exile. Batman breaks into LexCorp and steals the kryptonite, planning to use it to battle Superman by building a powered exoskeleton, and creating a kryptonite grenade launcher and a kryptonite-tipped spear. Meanwhile, Luthor enters the Kryptonian ship and learns of its functions, as well as recorded alien worlds.