Setting and characters Suicide Squad: Kill the Justice League is set in the
Batman: Arkham universe, five years after the events of
Batman: Arkham Knight (2015). The game centers around the
Suicide Squad, which is initially composed of
Arkham Asylum inmates
Dr. Harleen Quinzel / Harley Quinn (
Tara Strong),
George "Digger" Harkness / Captain Boomerang (
Daniel Lapaine),
Floyd Lawton / Deadshot (
Bumper Robinson), and
Belle Reve prisoner
Prince Nanaue / King Shark (
Joe Seanoa), created by
A.R.G.U.S. director
Amanda Waller (
Debra Wilson). The main antagonist takes the form of
Vril Dox / Brainiac (
Jason Isaacs), a highly intelligent alien who has invaded Earth and brainwashed its inhabitants, including
Justice League members
Kal-El / Clark Kent / Superman (
Nolan North),
Barry Allen / The Flash (
Scott Porter),
John Stewart / Green Lantern (Dan White), and
Bruce Wayne / Batman (
Kevin Conroy). Major supporting characters in the game include
Princess Diana of Themyscira / Wonder Woman (
Zehra Fazal), the only member of the Justice League not under Brainiac's control; Colonel
Rick Flag Jr. (
Jim Pirri), an A.R.G.U.S. operative working for Waller;
Lex Luthor (
Corey Burton), a megalomaniacal billionaire and Superman's
arch-nemesis;
Lois Lane (
Seychelle Gabriel), a Metropolis news reporter working for the
Daily Planet;
Aaron Cash (Duane R. Shepard Sr.), an Arkham Asylum guard;
Edward Nigma / The Riddler (
Wally Wingert), a narcissistic supervillain who challenges the Squad with completing various puzzles across the city;
Oswald Cobblepot / The Penguin (Nolan North), a
Gotham City crime lord and weapons dealer who supplies the Squad with anti-
metahuman weaponry;
Mikron O'Jeneus / Gizmo (
Rick Pasqualone), a vehicle expert who develops various means of transportation for the Squad; Zalika / Hack (Omono Okojie), a technomancer who monitors the Squad's neck bombs and provides them upgrades;
Hiro Okamura / The Toyman (
Christopher Sean), a mechanical genius who idolizes the Justice League; Other characters featured in the game are Kamo/Chondrakha (Andrew Morgado), a shark god who is King Shark's father; A.R.G.U.S. agents Taki Matsuda (Anne Yatco), Flynn Russell (
Camrus Johnson), Marcus Lo (
Daisuke Tsuji), and Tianna Cortez (Krizia Bajos);
Sydney Happersen (
Dave B. Mitchell), a
LexCorp scientist who was Lex Luthor's assistant; and
Jack Ryder (
James Horan), a famous Gotham City reporter who helped to create "The Batman Experience". Post-launch seasons feature the additions of four playable Squad members: the
Joker (
J. P. Karliak), a
multiversal variant of Batman's deceased arch-nemesis; Dr. Victoria Frias / Mrs. Freeze (
Erika Ishii), a multiversal variant of
Dr. Victor Fries / Mr. Freeze;
Zoe Lawton / Lawless (Marley Soleil), Deadshot's daughter who has taken on a master thief persona in his absence; and
Slade Wilson / Deathstroke (
Glenn Wrage), a formidable assassin working for A.R.G.U.S.
Plot Arkham Asylum inmates Deadshot, Captain Boomerang, Harley Quinn, and Belle Reve prisoner King Shark are freed from captivity by A.R.G.U.S. director Amanda Waller and are forced to join her Task Force X, the "Suicide Squad". After miniature bombs are injected into their heads, Waller sends the squad into Metropolis which is under attack by Brainiac. When they raid the Hall of Justice, a brainwashed Green Lantern attacks them and explains that Brainiac plans to
xenoform Earth. The Flash intervenes to rescue the squad but is gravely wounded and captured by a brainwashed Batman. The squad retreats to the Hall of Justice and encounters Wonder Woman, the only other member of the Justice League who was not brainwashed. She refuses to work with them as Waller orders the squad to kill the Justice League and end their threat. Waller has the squad scour Metropolis for weapons and technology that can be used against the Justice League, as well as forcibly recruiting other villains into their ranks. They attempt to apprehend Lex Luthor to obtain his knowledge, but he is killed by a now-brainwashed Flash; the squad narrowly escape thanks to Wonder Woman's intervention. She subdues the Flash to find a way to stop Brainiac, with him replying that the only way is to kill her friends. The squad is supplied with anti-Speed Force technology, which they use to kill the Flash. Green Lantern arrives and forces the squad to flee through one of Brainiac's portals. The squad finds themselves transported to Earth-2, an alternate Earth that has already been destroyed by Brainiac. They meet an alternate version of Luthor, nicknamed Lex-2, who reveals that he had been collaborating with his Earth-1 counterpart to prepare for Brainiac's invasion. Lex-2 transports the squad back to their dimension and warns that Waller will have them killed as her Earth-2 version did to her own squad. The squad breaks into Wayne Enterprises' secret bank vault, where they find Wonder Woman crafting a Kryptonite-based shield. After she leaves, Lex-2 secures Yellow Lantern batteries that Batman was keeping as a contingency against Green Lantern and gives them to the squad. He reveals that Waller has no intention of granting the squad their freedom, either letting them get killed or otherwise using Brainiac's mind-control technology on them. The squad confronts and kills Green Lantern, temporarily disabling a shield protecting Brainiac's ship. Waller attempts to call a nuclear strike on Brainiac, willing to sacrifice the squad, but a brainwashed Superman thwarts her plans. Wonder Woman and Superman battle each other as the squad attempts to escort Waller to safety inside the Hall of Justice. Wonder Woman stabs Superman with a shard of Kryptonite, but he survives and kills her before retreating to Brainiac's ship. Lex-2 theorizes that Brainiac changed Superman's DNA to be more resistant to Kryptonite and, through Boomerang, suggests to an oblivious Waller that they capture Batman so he can devise a countermeasure. The squad captures Batman in his hideout and takes him to Lex-2, who develops Gold Kryptonite to combat Superman. With no further use for Batman, the squad takes him to an open area, where Harley kills him. Superman is lured out and subsequently killed with the squad's Gold Kryptonite weapons. However, Brainiac captures them, intending to brainwash them to be replacements for the League. Lex-2 rescues them and reveals that he has learned there are thirteen different iterations of Brainiac spread across different dimensions working together to take over the entire multiverse. Waller and Lex-2 coordinate to teleport the squad to the first Brainiac's location on Earth-2 to confront him directly, where he proceeds to mimic the Flash's appearance and abilities. After a lengthy battle, the squad subdues and captures Brainiac, allowing Lex-2 to extract the information in his brain. The extraction ends up killing Brainiac, with the primary Brainiac's ship reacting by partially exploding. The squad prepares to hunt down the twelve Brainiacs remaining across the multiverse.
Season of the Joker Following the defeat of the first Brainiac, the primary Brainiac begins to phase parts of other worlds into Earth-1 and enhance his troops. Waller sends the squad to "Joker Earth", an alternate universe where Brainiac xenoformed Metropolis using the DNA of the Joker, who killed his own Suicide Squad and A.R.G.U.S. forces in a failed suicide bombing attempt to kill Brainiac. The squad battles the second Brainiac, who takes the form of Green Lantern, and defeats him. The squad then captures the Joker and takes him back to Earth-1, where he agrees to join them in the ongoing war against Brainiac's forces. As the battle continues on Earth-1, Brainiac adapts his forces by infusing them with Green Lantern's DNA, giving them his powers. The squad returns to Joker Earth once more to confront the third Brainiac, who takes the form of Superman, and emerges victorious.
Season of Freeze Waller establishes contact with Dr. Victoria Frias / Mrs. Freeze, a female variant of Dr. Victor Fries / Mr. Freeze from a world invaded by Brainiac, to enlist her help in stopping the invasion on Earth-1 and recovering the Flash, who is revealed to still be alive after his signal was detected on Brainiac's Skull Ship. The squad is deployed to clear out various incursions on Freeze's world, dubbed "Frozen Earth". Afterward, they are tasked with escorting Freeze and her cryogenically frozen wife, Nora, to Earth-1. Having ensured Nora's safety, Freeze agrees to join the squad. The squad confronts the fourth Brainiac, who uses a combination of the Flash and Superman's powers to combat them but is ultimately defeated. The squad successfully retrieves the Flash, uncorrupted, and returns to Earth-1, where the latter is put into stasis for recovery. Freeze proceeds to study the Flash, which also helps to accelerate her progress on finding a cure for Nora, though she begins to notice an inconsistency between Brainiac's actions and his strategy. The squad continues their work on Frozen Earth, and eventually defeats the fifth Brainiac.
Season of Lawless Deadshot's daughter, Zoe Lawton, contacts the squad and reveals that she has been operating as the vigilante Lawless, tackling Brainiac's forces behind the scenes while also attempting to locate Green Lantern who is revealed to still be alive. Waller sends the squad to "Fear World", a universe where Earth made its last stand against Brainiac in Gotham City. Here, Lawless tasks the squad with disabling Brainiac's armada so she can extract Green Lantern from his pod. They succeed, though Lawless remains stuck on Brainiac's Skull Ship, forcing the squad to return later to extract her. The squad faces the sixth Brainiac, who uses a combination of Green Lantern and Superman’s powers, and defeats him. Upon returning to the Hall of Justice in Earth-1, Lawless willingly signs up to join Task Force X, in spite of Deadshot's protests. The squad continues their fight on Fear World, and eventually defeats the seventh Brainiac.
Season of Deathstroke Waller tasks the squad with infiltrating "Medieval Earth", a feudal-themed universe Brainiac has only recently invaded, to help extract Deathstroke, who is revealed to have been working with Waller since the beginning of Brainiac's invasion and has killed two variants on his own. After dismantling several of Brainiac's operations, the squad confronts the eighth Brainiac on Medieval Earth, where Deathstroke quickly kills him before he can retaliate. Deathstroke and the squad then return to Earth-1. With Brainiac's forces dwindling, Waller orders the squad to return to Medieval Earth and kill the primary Brainiac, as well as rescue Superman. The squad, with support from the Flash and Green Lantern, battles the final three Brainiac iterations, and defeats them. They are then joined by Superman and Batman, who manage to escape from their containment pods, with Batman landing the final blow on Brainiac. Superman reveals to the squad that the League members they killed were merely clones created by Brainiac to serve him. He then enlists the squad to help the League clear out remnants of Brainiac's forces across the multiverse. The support squad members also help disable all of the squad's neck bombs, rendering Waller unable to harm them. A statue of Wonder Woman is erected to honor her sacrifice, while Lex-2 begins a new presidency campaign on Earth-1. As the squad joins the League on their new mission, they deliver Brainiac to Waller as a parting gift and pass classified A.R.G.U.S. documents to
Daily Planet reporter Lois Lane. ==Development==