Southland

Lydia and her new partner hunt a cleaning lady's killer. John and Ben rescue an officer during a bank-robbery shootout. Nate and Sammy investigate the murder of a gangmember.

Sammy and Nate feel threatened when Sal calls in Lydia and Josie to help them solve a series of gang murders. John and Ben switch partners during Dewey's first day back from rehab.

Ben seeks revenge when his mother's rapist is released from prison. Lydia and Josie bump heads over a chainsaw, as Sammy deals with his wife's betrayal.

Sammy & Nate get into a deadly gang confrontation. Ben makes a series of rookie mistakes and Lydia works a gang homicide that leads to an unorthodox killer.

Lydia and Josie catch a complicated rape case on the Westside. John bonds with an abandoned teenager, while also having to deal with testifying at his own father's parole hearing.

While working a celebrity murder, Lydia discovers the pros and cons of being in the spotlight. Sammy goes out on patrol. John & Ben are frustrated with a tedious security detail.

Lydia gets suspended from duty and bonds with an injured witness. A high-speed chase haunts Chickie, and John tries to clean up a neighborhood.

Sammy seeks answers in the desert. Lydia and Josie babysit an important alcoholic witness before a murder trial. And John and Ben go against procedure to help a child in need.

Ben deals with John's escalating drug problem as Sammy prepares for fatherhood. Lydia embraces a teenage victim and fights her emotions during a high-octane shootout.

On Ben Sherman's final day as a rookie, challenges abound - none more daunting than how to handle his partner's growing reliance on painkillers.