Agent Doggett awakens in a corrupt and violent Mexican town with no memory of his true identity.
Sipowicz suffers a setback while undergoing more medical tests; Simone and Russell have another encounter with the wife of a fellow officer suspected of murder.
Sipowicz gets a call from the FBI that a bomb may have been forwarded in the mail to the Family Court building. The detectives go to the scene and start an evacuation of the building.
When Sam leaps into the life of a cocktail lounge piano player from 1985, he and his old flame become targets of a killer determined to get rid of those who witnessed a mob murder.