Justice League: Crisis on Two Earths (film)

Justice League: Crisis on Two Earths is an imagined film in the DC Cinematic Universe and the seventh film in the Justice League film series. It kickstarts the final trilogy that will end the DCCU. It is based on the "Crisis on Earth-Three" storyline and serves as a precursor to 'Crisis on Infinite Earths'. It takes place after the events of Justice League Dark and Flashpoint. It is the first Justice League film to not feature Superman and Wonder Woman.

Plot

 * It was revealed in Flashpoint that a being of unspeakable power is causing destruction in the "multiverse" and that Barry Allen's disruption of the timeline allowed Earth-1 to stay hidden from the destruction.
 * Lex Luthor of Earth-2 escaped the Crime Syndicate (evil version of the Justice League) and stole the Quantum Trigger, using it to arrive at Earth-Prime. He meets Cyborg (credits scene of Flashpoint).
 * The Crime Syndicate developed the Quantum Trigger after learning that the being known as the Anti-Monitor is destroying other universes, and will eventually destroy Earth-2. The Anti-Monitor has its origins traced to Earth-Prime and the Crime Syndicate believes that destroying Earth-Prime would destroy the Anti-Monitor. Lex Luthor was not convinced of this and believes it is unethical, so he stole the Quantum Trigger and went to Earth-1 to warn the Justice League.
 * Luthor convinces the Justice League to join him to Earth-2 to destroy the Crime Syndicate. Supergirl, The Flash, Green Arrow, Donna Troy and Cyborg go while Batman advises against it and stays behind with the rest of the league in the satellite and other bases around the world (Black Canary, Vixen, Aqualad, Plastic Man, Shazam!, The Atom, Spartan, Maxima, Big Barda, etc)
 * The Justice League, with the help of the military of Earth-2 defeat the Crime Syndicate and they are imprisoned.
 * The Justice League return to Earth-1, but a public campaign starts to form on Earth-2 to release the Crime Syndicate after Owlman is able to release information that they were trying to save the world. President Slade Wilson adheres to the demands of the people and releases the Syndicate. Shortly after, it is revealed that Owlman, a nihilist, wants to destroy Earth-Prime because it would destroy everything. He and Superwoman overthrow Ultraman as leader of the Syndicate and start planning the destruction of Earth-Prime. Superwoman, Johnny Quick and others travel to Earth-1 to retrieve the Quantum Trigger.
 * Johnny Quick opens a portal to send the Quantum Trigger to Owlman, but is killed in the process.
 * Power Ring and Owlman go to Earth-Prime before Owlman kills Power Ring.
 * Batman is able to travel to Earth-Prime using the portal Johnny Quick created, and has a brutal fight with Owlman on the barren Earth-Prime.
 * Batman is able to defeat Owlman, who explodes with the Quantum Trigger.
 * Superwoman is imprisoned in Earth-2.
 * Batman, nearly dead due to the lack of oxygen on Earth-Prime, which has left the Sun's orbit many years ago due to a cataclysmic event, is saved by The Spectre and Doctor Fate and returned to Earth-1.
 * Cyborg deduces that the Syndicate was correct in that the Anti-Monitor is destroying universes and it is only a matter of time before it comes to Earth-1.

Cast

 * Lucas Hedges as Dick Grayson/Batman
 * Bryan Cranston as Lex Luthor (Earth-2)
 * Samara Weaving as Kara Zor-El/Supergirl
 * Jason Isaacs as Thomas Wayne II/Owlman (Earth-2)
 * Morena Baccarin as Lois Lane/Superwoman (Earth-2)
 * Corey Fogelmanis as Wally West/The Flash
 * Liam Hemsworth as Oliver Queen/Green Arrow
 * Lily James as Donna Troy
 * Lucas Till as Jonathan Chambers/Johnny Quick (Earth-2)
 * Jon Hamm as Kal-Il/Ultraman (Earth-2)
 * Yvonne Strahovski as Dinah Laurel Lance/Black Canary
 * Dan Stevens as Harold Jordan/Power Ring (Earth-2)
 * Joe Mangianello as President Slade Wilson (Earth-2)
 * Timothee Chalamat as Garth/Aqualad
 * Zachary Levi as Billy Batson/Shazam!
 * Pierce Brosnan as Kent Nelson/Doctor Fate
 * Katheryn Winnick as Maxima
 * Eric Bana as Ray Palmer/The Atom
 * Lupita Nyong'o as Mari McCabe/Vixen
 * David Tennant as John Constantine
 * Camila Mendes as Zatanna Zatara
 * David Ramsey as John Diggle
 * Laura Prepon as Big Barda
 * Jeffrey Wright as Jim Corrigan/The Spectre

Future
Justice League: Crisis on Infinite Earths will be released the next year.