Stingers

When a Homicide investigation into the disappearance of a teenage babysitter fails to reveal any useful evidence, Church and Angie go undercover to infiltrate a sinister criminal family.

Someone is looking to hire a hitman, so Church goes undercover. Surprisingly, his client is a woman who claims that her husband is trying to kill her. She wants him dead before he succeeds.

A policeman has been shot. Undercover is called upon to infiltrate a suspected Romanian gang, but they don't deal with outsiders. Rocca must rely on an ex-undercover operative who could potentially jeopardize the job and the unit.

Undercover is called in to find a serial killer. When Angie's cover is blown, Kaye becomes her replacement. Her first solo job is going well until all contact with her is lost and she vanishes.

Following Kay's disappearance, the Unit goes into damage control, scrutinizing the surveillance footage and following up on the few leads they have - a process that provides an unexpected suspect.

Whilst undercover, Church is employed by a brutal mercenary, Cameron Fraser, to assist in the abduction of a young girl. After a botched attempt, Fraser successfully tails Church, putting the security of the unit at risk.