In the Season 3 premiere, Andy returns to work following her three-month suspension unsure if she will be reinstated to active duty. Later, a car accident caused by a drunken driver (William Shatner) leads to the reopening of a 7-year-old cold case.
During her first day as a detective, Traci makes an amateur mistake that puts a homicide investigation in jeopardy. Meanwhile, Chris realizes that he still has feelings for Gail while they work a case together.
Conclusion. A serial killer is suspected when a missing girl's body is discovered in a ravine, but news of Andy's assault and Gail's abduction turns an already crucial investigation into a rescue mission by the officers to save one of their own.
In the aftermath of a tragic loss, the officers must recover a stolen laptop containing information that could compromise a drug informant, whose motives arouse suspicion in Sam and cause a rift between him and Andy.