Played opens with the CIU tackling a case involving a dangerous drug kingpin.

When a 15-year-old escort disappears at a downtown hotel, the CIU goes undercover to infiltrate an underage prostitution ring masterminded by two brothers.

Daniel goes undercover to investigate a slew of murders perpetrated by masked robbers.

The team deals with a toxic law firm while investigating a litigator's mysterious disappearance.

Jesse visits his old neighborhood to investigate and uncover a hidden arsenal of assault rifles.

Jesse and Moreland try to break up a fight club that's protected by an unscrupulous police officer.

A young thief helps Maria crack down on an auto-theft ring.

Khali and Jesse go undercover to investigate a series of murders at an illegal afterhours club.

The CIU investigates police corruption in Daniel's old unit.

Rebecca crosses a line in the pursuit of justice.

A trafficking network that has been operating with diplomatic immunity is uncovered during a CIU investigation of a murder at an Eastern European consulate.

The CIU team works with a hit man to infiltrate a biker gang that has hired him to kill innocent people.