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Episodes focus on criminal cases that happened and were solved in the country of Estonia in the 1990s. Over 20 episodes were being produced. Running coverage of the show were cases of serial killers, blackmail, theft, robberies, distribution of fake money. Format includes interviews with police investigators, judges, case witnesses, interviews with criminals after they were caught and processed after by law enforcement.

Mackey must recover the stolen evidence from a drug bust before Aceveda is able to pin the theft on him.

A dispute over an up-and-coming singer's success erupts in a gang war that threatens to bring Vic down, too; a case that could help Aceveda's political future sends Dutch and Claudette searching for a missing day laborer.

Following the shooting death of a police department informant, Aceveda turns up the heat in the investigation of Mackey and his Strike Team.

While Dutch and Claudette investigate the murder of Nancy Reborg, they discover that her daughter is missing and has been sold by her addict father to a child molester. David tries to crack corruption in the Barn by recruiting Terry to help him take down Vic.

It's warrant sweep day at the Barn. Vic and the Strike Team discover visiting NBA superstar Derrick Tripp hanging out with his "homies" before the evening game with the Lakers. Vic decides to do his part for the home team by keeping Tripp as a "friendly hostage". One of Vic's street informants, Connie, approaches him after having been roughed up by a new john. Vic hands off the case to Claudette and Dutch, who is convinced they're on the trail of a serial killer. Dutch's theories are proved wrong when he and Claudette ultimately discover that their perp is not a serial killer but rather a disturbed man who is raping women in a desperate attempt to procreate. Danny and Julien stumble upon a gun smuggling ring while delivering one of their warrants and disaster is averted only by Danny's sharp instincts. David has his hands full overseeing the sweep, managing an increasingly packed cage, soothing the frazzled nerves of the attending desk sergeant, and avoiding a potential lawsuit from Derrick Tripp's lawyer over the disappearance of his star client.

Shane's guilt for killing Lem intensifies after the Strike Team learns that he didn't make a deal with the authorities, and Kavanaugh resorts to threatening informants and planting evidence to pin Lem's murder on Vic.

As he puts a price on Shane's head, Vic is asked to prove his loyalty to Beltran by killing Pezuela.

Vic turns in his badge a week early and sets out to find and kill Shane and his wife. However, Ronnie is benched after Claudette shuts down the Strike Team. Meanwhile, Aceveda finds out more disturbing information about Cruz Pezuela.