Car 27 stakes out a cockfighting ring. Cullen (Patrick Brammall) and Tolbeck (Tim Meadows) are rattled when a hero of the San Diego Police Department falls from grace. Both Marco (Jason Mantzoukas) and his new partner-in-crime, Frankie, have a secret. Fatima (Sunita Mani) falls victim to extortion. Jake Johnson and Cristin Milioti guest star.