When a robbery crew holds up the iconic downtown Los Angeles library, the team discovers that stolen architectural drawings could lead to a major threat against the city. Also, the squad is surprised by the arrival of a new leader, longtime LAPD veteran and former S.W.A.T. member Rodrigo Sanchez.

As the team races to stop a violent band of armed robbers, the search is complicated by civilians using a public safety app that encounters vigilantism; Street receives difficult news that alters his future.

When the team responds to a home invasion call, they uncover a murderous plot against a famous pro football quarterback; Hicks gets a long-awaited lead on a Jane Doe case he worked 20 years ago.

When armed gunmen storm the set of a controversial cable news show that promotes conspiracy theories, the team races to prevent a hostage situation from escalating on live TV. Also, Chris supports Street as he prepares for his mother’s funeral.

When an intruder breaks into the home of a Hollywood actress, Hondo and the team are forced to partner with an old nemesis to track down a dangerous criminal; Tan struggles to find the perfect anniversary gift for his wife.

SWAT teams up with the DEA, led by Mack Boyle, to conduct a massive gang sweep, only to discover that a vicious cartel is planting roots in the city and endangering numerous lives. Also, Hicks marks an important anniversary.