
The Philadelphia homicide squad's lone female detective finds her calling when she is assigned cases that have never been solved. Detective Lilly Rush combines her natural instincts with the updated technology available today to bring about justice for all the victims she can.

When a frazzled mother bursts into the Philadelphia Police Department claiming to know who might have killed her daughter at a 1968 debutante ball, Lilly reopens the case.

Several banks are robbed, surfacing clues that might help Lilly and the team solve a bank teller's 2000 murder.

Valens' past haunts him when a 1998 case involving a drug mule is reopened, and he is the focal point.

Lilly and company use their unique expertise and interrogation skills to solve a killer's demented puzzle and save a young boy's life.