Lt. Lynch pulls the SWAT team’s focus when the mayor tasks her with enacting a departmental review of the squad right as they pursue the unstable and dangerous fugitive leader of an infamous doomsday cult. Meanwhile, Luca asks the team to invest in his new passion project, a Guatemalan food truck.

The SWAT team searches for thieves who are on the run with a high-tech thermal lance that can cut through almost anything. To find the thieves, SWAT works to identify their target. Also, Chris confronts an imbalance in her relationship with Kira and Ty.

The SWAT team joins forces with the Los Angeles Organized Crime division to recover an officer abducted during a failed undercover operation. Also, Chris struggles with how to comfort the kidnapped officer’s parents when she is restricted from giving them certain details of the investigation.

Street is caught between his duty to SWAT and his commitment to his foster brother, Nate when Nate is ensnared in a criminal enterprise that could ruin them both. Also, the SWAT team goes after a ruthless crew that uses deadly force while stealing from card casinos, and Buck approaches Deacon to partner on a private security opportunity.

When control of a university chemistry lab is seized, the team races to thwart a devastating terror attack.