The Justice League IV (film)

Justice League United, also called The Justice League IV in some countries, is an imagined film in the DC Cinematic Universe that serves as the long-awaited sequel to the epic The Justice League III. It serves as the beginning of a new Justice League trilogy in a post-Darkseid world, featuring an overhauled lineup.

It stars Gal Gadot, Cillian Murphy, Zachary Levi, Ray Fisher, Trevante Rhodes, Katheryn Winnick, Liam Hemsworth, Samara Weaving, Eric Bana, and Lupita Nyong'o.

Plot



 * Brainiac, who was introduced as Vox in Superman: Son of Krypton, is a mechanized humanoid from the planet Colu, which is led by computer tyrants. He is tasked with stealing a sample of planet Earth, particularly Metropolis, and bringing it to Colu. He wants to further the evolution of the Colu species by finding out what made Earth able to defend the Anti-Life Equation from Darkseid and his forces in The Justice League III.
 * Meanwhile, Wonder Woman has been the head of the Justice League since The Justice League III, after the death of Batman, and Superman's off-world adventures and eventual retirement in Superman: Son of Krypton. It has been a fairly peaceful five years of rebuilding since the invasion of Darkseid, so there haven't been any extraterrestrial threats involving the entire league since then. Cyborg, Maxima, and Red Tornado have been members since Darkseid's invasion. John Stewart joined after the events of Green Lantern: Parallax to replace the deceased Hal Jordan. Supergirl is trying to find Vox/Brainiac after having suspicions of him in the credits scene of Teen Titans.
 * Brainiac continues to study Earth and calculates that he needs to perform a blitz attack on the Justice League, the defenders of Earth, as they will likely interfere in his capturing of Metropolis. He hijacks technology in cities around the world to distract them and take them off one-by-one.
 * Cyborg is able to learn when and where these attacks will occur, but is unable to determine who is behind them. Wonder Woman mobilizes the Justice League, but the attacks are too numerous and distanced for them to stop them by themselves.
 * The first attack occurs in Star City, Military technology goes rogue and starts to attack people. Green Lantern is sent to put a stop to it. Luckily, Green Arrow also arrives and their combined efforts stop the attack.
 * At Central City, Brainiac infiltrated important molecular equipment at STAR Labs. Cyborg enlists the help of The Atom, who was introduced in the show, The Atom, to destroy Brainiac's presence. Vixen also helps.
 * In Fawcett City, a cell tower is collapsing, but Maxima, with the help of Shazam! arrive in time to save people.
 * Meanwhile, Brainiac arrives at Justice League tower and finds Red Tornado. Brainiac manages to take information and power out of the android and kills him after a fight.
 * Wonder Woman regroups the Justice League after the death of Red Tornado. Supergirl learns of this and talks to Wonder Woman and tells her where Brainiac was from - as she knows him from Superman: Son of Krypton.
 * The team now consists of: Wonder Woman, Cyborg, Green Lantern, Maxima, Shazam!, Green Arrow, The Atom, Vixen, and Supergirl.
 * The Justice League fights Brainiac as he attempts to take Metropolis. Blue Beetle and Booster Gold arrive and help. Superman also arrives at the last second.
 * Brainiac is destroyed. Superman realizes that he cannot stay away from fighting. He needs to continue to be a hero.
 * In the mid-credits scene, Maxwell Lord, now promoted to replace Lex Luthor after the merger of LexCorp and Cale Pharmaceuticals, and last seen in Wonder Woman: Warkiller, is seen studying files related to Project: Doomsday, which the late Lex Luthor was working on. Mercy Graves and Kitty Kowalski are in the background.
 * In the post-credits scene, a mysterious figure is seen at the grave of Bruce Wayne.

Cast

 * Gal Gadot as Diana Prince/Wonder Woman

The leader of the Justice League. She is instrumental in re-forming the League to take down Brainiac.


 * Cillian Murphy as Brainiac

A researcher for the Colu Computer Tyrants who intends on taking all of Metropolis with him. Is killed by the Justice League.


 * Zachary Levi as Billy Batson/Shazam!

While his friends want to start leading a normal life, Billy is forced back into action after Brainiac attacks Fawcett City.


 * Ray Fisher as Victor Stone/Cyborg

A longtime Justice League member who helps recruit new members and is instrumental in taking down Brainiac,


 * Trevante Rhodes as John Stewart/Green Lantern

The protege of the late Hal Jordan who takes his place in the Justice League.


 * Katheryn Winnick as Maxima

A former commander of Darkseid who became good in The Justice League III, only to be corrupted into evil by Brainiac. She eventually becomes good again and joins the Justice League.


 * Liam Hemsworth as Oliver Queen/Green Arrow

A vigilante from Star City who finds clues to destroying Brainiac and joins the Justice League. Last appeared in Green Arrow & Black Canary.


 * Samara Weaving as Kara Zor-El/Supergirl

The cousin of Superman who knows Brainiac and helps the Justice League.


 * Eric Bana as Ray Palmer/The Atom

A scientist at STAR Labs who can change his size. Joins the Justice League.


 * Lupita Nyong'o as Mari McCabe/Vixen

Helps the Justice League at STAR Labs. Last appeared in Vixen. Joins the Justice League.
 * Henry Cavill as Clark Kent/Superman

Forced out of retirement, Superman helps the Justice League defeat Brainiac after he attempts to take Metropolis.

Corey Stoll returns as Red Tornado, a high-functioning android and close friend of Cyborg. Ed Helms and Zac Efron reprise their roles as Ted Kord/Blue Beetle II and Michael Jon Carter/Booster Gold from Blue Beetle and Booster Gold. Alan Tudyk voices '''Skeets. Zendaya, David Ramsey, and Carlos Valdez reprise their roles as Natasha Irons, John Diggle, and Cisco Ramon,''' respectively. Martin Freeman also returns as Scott Free in a small role. Pedro Pascal, Tao Okamoto, and Kathy Ireland appear in the mid-credits scene as Maxwell Lord, Mercy Graves, and Kitty Kowalski, respectively. Joel Edgerton appears as William Hand in the post-credits scene.

Future
The next major event featuring the Justice League members is Green Lantern: Blackest Night.

The fifth Justice League film is Justice League: Doom.