The movie follows a team of supervillains, including Deadshot (Will Smith), Harley Quinn (Margot Robbie), Captain Boomerang (Jai Courtney), and others, who are recruited by a government agent, Rick Flag (Joel Kinnaman), to form a secret team known as Task Force X. Their mission is to infiltrate a highly classified facility and take down a powerful villain, known as Incubus. However, things quickly go awry, and the team must fight to survive and complete their objective.