Jim Street (Colin Farrell) is a member of the S.W.A.T (Counter-Terrorism SWAT team) in Los Angeles. When he was carrying out a hostage rescue mission with his partner Brian Gamble (Jeremy Renner), the hostages demand compensation from the government due to Brian's mistake. Brian left the police force in anger, and Jim was transferred to another department, and the friendship between the two ended.Six months later, Jim finally returned to S.W.A.T with his unremitting efforts.At this time, S.W.A.T was commanded by Sgt. Dan Hondo Harrelson (Samuel L. Jackson), with five players, and broke the rule that there was no woman. The first female player of S.W.A.T appeared, a single mother, Chris Sanchez (Michelle Rodriguez).Under Harrelson's guidance, after five team members underwent rigorous training for several weeks, Jim and his teammates began their first mission: to watch over the devilish drug lord. Alex Montel (Olivier Martinez) - a criminal who engages in drug trafficking, arms smuggling, money laundering and other crimes.After Alex Montel was arrested by Los Angeles police, he still planned to escape the French Open before extradition. He promised through the media that anyone who can rescue him would receive a huge bounty of $100 million.In order to get the money, the outlaws launched an action, including Jim's old partner Brian Gamble, and the members of S.W.A.T faced the most difficult challenges. At the critical moment, the rebellion of the players and the distrust of their superiors almost forced them into a desperate situation.