Lex Luthor receives a vision from Apokolips—power, order, and a world without Superman. He begins forming a Legion. A wormhole opens above Metropolis; monsters pour out. Bruce Wayne heads there. Barry Allen and his partner Donald are already investigating a body that crossed from Central City to Metropolis. As chaos erupts, Barry suits up. Batman and Flash meet at the Daily Planet, helping evacuate civilians under the wormhole. A monster attacks, but Wonder Woman kills it. Batman recognizes her from the Justice Society. The three fight their way through the building until Superman arrives, saving Batman from falling debris. With the wormhole closed, Lex summons his Legion: Black Adam, Ocean Master, Captain Cold, Cheetah, and Deathstroke. He needs the second half of a Mother Box, hidden in Atlantis. Orm and Deathstroke are sent to retrieve it via the Delaware River. Batman, Superman, Wonder Woman, and Flash regroup. Clark reveals his identity. Bruce, suspecting trouble, heads to Philly and confronts Slade—only for Captain Marvel to help take him down. Slade talks in exchange for release. Batman and Marvel stop Orm, but he escapes with the Mother Box. Aquaman joins them. The heroes unite in Metropolis. At LexCorp Tower, they battle the Legion—taking down Cold, Cheetah, Adam, and Orm. Bruce and Clark confront Lex, who claims to serve a higher power. He’s arrested but bailed out by Mercy. The heroes declare their alliance: the Justice League.
