The team reopens the 2004 case of Dana Taylor, a missing 30-year-old Iraq War veteran, wife, and mother, after her prosthetic arm is found in a river.
The team reopens the 1979 murder of Libby Bradley, an upper-class housewife and schoolteacher, when her bloodstained jacket is found in a tree in the woods where she was stabbed to death.
The team soon discovers that the victim was having marital problems with her husband Carl that affected even their daughter Helen, whom Jefferies had promised that he would catch her mother's killer.
The team reopens the 1989 murder of Martha Puck, a 33-year-old single woman, after her video dating tape shows up in the apartment of a man who committed suicide.
The team reopens the 1968 murder of Sean Cooper, a young policeman with a "cowboy" reputation who was shot to death in his patrol car, after a terminally ill convict claims the cop was crooked.
The team reopens the 2002 murders of Skill Jones and Madison Reed, two teenagers from different parts of the city, after Kat discovers they were both fatally shot at precisely 8:03 AM.
The team learns the victim was an aspiring dancer who wanted to follow in his late mother’s footsteps, much to the dismay of his father and older brother, while also getting caught in a love triangle.
The team reopens the 1997 death of Rainey Karlsen, a 16-year-old cheerleader who was thought to have died from an accidental drug overdose, after an anonymous confession to her murder is found in a modern art exhibit along with new suspicious evidence.
The team reopens the 2005 murder of longshoreman Mike Chulaski at the request of ADA Alexandra Thomas and the FBI, who believe that solving the case can help bring down an international human trafficking ring.
The team reopens the 2006 triple homicide of the Jacobi family (parents Adam and Emily, and their son Stewart) when the sole survivor of the shooting, their teenage daughter Kim (Ellen Woglom), wakes up from a coma and begins remembering details about the night of the murder.