When a chief health inspector is found dead by poisoning, Terry and Annie Murphy get their hands dirty as they look for leads in a menu of suspects.

Marco puts the entire cockfighting ring in jeopardy and must find a solution before it’s too late. Fatima is forced to undergo sensitivity training. A dream scenario for Cullen and…

The night of the cockfight arrives with unexpected results. Janice blames Fatima for her financial woes. Tolbeck has an unlikely admirer.

When Cullen and Tolbeck are reunited with a figure from their past, Cullen realizes that he doesn’t know his partner at all. Meanwhile, Marco and Frankie open up to each…

Zach, the new dispatcher at SDPD, goes to various lengths to impress Fatima. Cullen confronts Tolbeck, who admits a shameful secret.

Cullen and Tolbeck make a shocking discovery. Fatima is jealous of Zach’s newfound success. Marco comes clean and his situation with Frankie comes to a head.

Car 27 stakes out a cockfighting ring. Cullen and Tolbeck are rattled when a hero of the San Diego Police Department falls from grace. Both Marco and his new partner-in-crime,…

As her new kids arrive, Liz scrambles to save TGS from cancellation. Jack finds a new NBC president.