The Suicide Squad
Intelligence officer Amanda Waller assembles two Task Force X teams, colloquially known as the "Suicide Squad", which consists of Belle Reve penitentiary inmates who agree to carry out missions in exchange for commuted sentences. The teams are sent to the South American island nation of Corto Maltese after an anti-American regime overthrows its government, and are tasked with destroying the Nazi-era laboratory Jötunheim, which houses the secret experiment "Project Starfish".
Upon making landfall, the Corto Maltese military slaughters most of the first team and capture Harley Quinn while team leader Rick Flag escapes. Elsewhere, the second team - led by assassin Bloodsport, who Waller blackmailed in exchange for not sending his estranged daughter Tyla to prison, and consisting of Peacemaker, King Shark, Polka-Dot Man, Ratcatcher 2, and her pet rat Sebastian - enters the country undetected. Waller orders the squad to find Flag, who is being held at a rebel base. The team massacres the rebel soldiers, only to learn that rebellion leader Sol Soria had saved Flag. Despite the group's actions, Soria agrees to help them infiltrate the capital, where they capture Project Starfish's lead scientist, the Thinker. Harley is taken to Corto Maltese's new dictator, Silvio Luna, who wishes to marry her. After learning of Luna's plans to use Project Starfish on political dissidents, Harley kills him and escapes. She joins the others, who use the Thinker to break into Jötunheim and begin rigging it with explosives.
Flag and Ratcatcher 2 enter the Thinker's laboratory and find Starro the Conqueror, a giant starfish–like alien that creates smaller versions of itself to kill people and control their bodies. The Thinker explains that Starro was brought to Earth by the U.S. government, which has secretly funded the experiments for decades using Corto Maltesean citizens as test subjects. An enraged Flag decides to leak a hard drive containing evidence of this, but is killed by Peacemaker, who is under orders from Waller to cover up the U.S.'s involvement. Meanwhile, a skirmish between the rest of the team and the military leads to Polka-Dot Man accidentally setting off the explosives prematurely. As Jötunheim crumbles, the drive falls into Ratcatcher 2's possession. Peacemaker attempts to kill her before she can escape with it, but Bloodsport shoots him and takes it.
Starro escapes the destroyed Jötunheim, kills the Thinker and much of the military, and begins taking control of the island's population. Waller tells the squad that their mission is complete and orders them to leave, but Bloodsport leads the team in fighting Starro. Waller attempts to execute them for this, but her subordinates knock her out. After Starro kills Polka-Dot Man, Harley pierces a hole in its eye, allowing Ratcatcher 2 to summon the city's rats to chew Starro to death from the inside. With the military diverted, Soria takes control of the government, promising democratic elections. Bloodsport blackmails Waller into releasing him and the surviving squad members and dropping Tyla's charges in exchange for keeping the contents of the drive confidential. Waller reluctantly agrees and the remaining squad members are airlifted out of Corto Maltese.
In a mid-credits scene, it is revealed that Weasel, a member of the first team, has survived and runs off into the jungle. In a post-credits scene, Waller punishes her subordinates by assigning them to a new mission with Peacemaker, who is still alive and recovering in a hospital.
