Justice League
Steppenwolf and his legions of Parademons attempt to take over the Earth using the combined energies of the three Mother Boxes. The attempt is foiled by a unified alliance including the Olympian Gods, Amazons, Atlanteans, humanity, and extraterrestrial beings.[c] The Mother Boxes are separated and hidden in different locations. Thousands of years later, Superman's death following the battle with Doomsday reactivates the Boxes, attracting Steppenwolf again to Earth. He aims to gather the Boxes to form "The Unity", which will destroy Earth's ecology and terraform it into a copy of his homeworld.
Steppenwolf retrieves one Mother Box from Themyscira, prompting Queen Hippolyta to warn her daughter Diana. Diana joins Bruce Wayne in an attempt to unite other metahumans to their cause: Wayne goes after Arthur Curry and Barry Allen, while Diana locates Victor Stone. Wayne fails to persuade Curry but finds Allen enthusiastic. Stone joins after his father Silas and other S.T.A.R. Labs employees are kidnapped by Steppenwolf, who is seeking the Mother Box protected by humanity.
Steppenwolf attacks an Atlantean outpost to retrieve the next Mother Box, forcing Curry into action. Stone retrieves the last Mother Box for the group, revealing that his father used it to rebuild Stone's body after an accident almost killed him. Knowing this information, Wayne decides to use the Mother Box to resurrect Superman, not only to help them fight off Steppenwolf's invasion but also to restore hope to humanity.
Clark Kent's body is exhumed and placed in the amniotic fluid of the genesis chamber in the Kryptonian scout ship, along with the Mother Box, successfully resurrecting him. However, his memories have not returned, and he attacks the group. Batman enacts his contingency plan: Lois Lane. Superman calms down and leaves with her to his family home in Smallville, where his memories come back. In the turmoil, the last Mother Box is left unguarded, allowing Steppenwolf to retrieve it. Without Superman to aid them, the five heroes travel to a village in Russia, where Steppenwolf's lair is located. They fight their way through the Parademons; just when all hope seems lost, Superman arrives and assists Stone in separating the Mother Boxes. The team defeats Steppenwolf, who is attacked by his own Parademons when they smell his fear.
After the battle, Bruce and Diana set up a base of operations for the team. Diana and Arthur resume their heroic duties; Barry acquires a job in Central City's police department; Victor continues to enhance his abilities with his father in S.T.A.R. Labs; Superman resumes his life as reporter Clark Kent and protector of Earth. In a post-credits scene, Lex Luthor has escaped from Arkham Asylum and recruits Slade Wilson to form a league of their own.
