The third season of the Canadian police drama Rookie Blue starring Missy Peregrym and Gregory Smith premiered on 24 May 2012 on Global in Canada. In June 2012, it was announced that Rookie Blue has been renewed for a fourth season which premiered on May 23, 2013 on Global in Canada.
After a three-month suspension, Andy faces an official tribunal that will decide if she should be reinstated; a drunken driver (William Shatner) with a grudge against the police causes a multicar crash.
While tracking down a police car stolen by students as a prank, Andy and Swarek pick up the trail of a teen who robbed and assaulted a local criminal.
When Dov walks into a robbery in progress and shoots a black teen, the community calls for him to be investigated.
Traci worries that she mishandled the investigation into a car accident that yielded a dead body; Chris realizes he has feelings for Gail.
Andy answers a domestic disturbance call to find the social worker on the scene is her estranged mother; Sam, Nick, Chris and Gail search for a mother and her two children; a stash of guns recovered by Detective Barber turns up on the streets.
Oliver Shaw's teenage daughter, Izzy, witnesses the brutal stabbing of a homeless squatter; when Izzy goes missing, officers rush to track her down.
After losing a key witness in an upcoming trial, officers from 15 Division must turn to a man who claims to be psychic.
When a pattern emerges among several cases of missing women, Gail goes under cover to investigate; Dov and Chris discover a body, leading them to believe Gail is in danger.
When Dov and Chris discover a missing girl's body in a ravine, Detective Luke Callaghan returns to oversee the investigation; when the officers learn that Gail has been abducted, they rally to track down her captor.
The officers try to prevent dangerous fallout when a laptop containing sensitive information is stolen; a wedge is driven between Sam and Andy.
Andy and Nick investigate when a neighborhood drug lord threatens a priest's life; a young drug-runner's refusal to turn informant leads Traci to make a decision about her career; Chris and Swarek butt heads; Dov's relationship takes a dark turn.
A chaotic night at the station leads to an investigation by Internal Affairs; Gail struggles to recover from her harrowing abduction; Andy discovers a secret about Nick's past.