The team re-investigates the 1968 death of a policeman who was shot in his patrol car. The case was then ruled as a drug bust gone bad, but new evidence now reveals the victim may have been romantically involved with his partner.

The team re-investigates the 1945 murder of a Japanese-American family man who was persecuted in his neighborhood following the Pearl Harbor attack. Meanwhile, Lt. Stillman has decided to retire from the force.

After traces of blood linked back to a missing teen are found, the team re-investigates the 2006 case of a boy who disappeared from a high school for deaf children.

When the murder weapon from a 1963 case is unearthed, the team re-opens the murder of a pool hustler who was shot the same day President Kennedy was assassinated.

The investigation into the female cadet's murder continues. As the team finds more and more clues, the killer tries to stop the investigation to remain hidden.

Realizing that the missing Vera has finally hit rock bottom, his worried team members hope that a new twist to a 2006 arson case, which he was secretly obsessing about in recent weeks, might supply leads to his whereabouts.

Valens partners with Rush to locate her abducted, drug-addicted sister, while Jeffries tries to bring justice to the case of a murdered teenaged girl that has haunted him for 17 years.