In the series finale, Jake and Leslie are in the fight of their lives as powerful enemies close ranks; and the Doyles use all their tricks to protect their own, and receive help from an unlikely source.
Jake's murder charge comes to the fore; Leslie faces a life-altering event as her job is on the line; Des shows up at the wrong place at the wrong time. Meanwhile, Tinny is torn between family and job; and the Doyles have 48 hours to solve a case.
After a security detail goes awry, all the Doyles come under police scrutiny and try to keep their stories straight. Meanwhile, Leslie and Jake are keeping secrets from each other, and as time runs down, Jake could be looking at prison time; and Des and Tinny's relationship is in a state of flux.
A dock strike turns violent, and the Doyles, while trying to protect a witness, uncover more-sinister goings-on; Jake squares off again with Saul; Rose receives a surprise from Sloan's past; and Jake is shocked by some news.
Jake deals with a case that's literally been dropped off on his front step; Ned Bishop's stranger-than-usual behavior imperils a pivotal day for Christian Doyle; and Leslie's past actions come back to haunt her and lead to pressure from a new source.
Jake seeks evidence to prove him innocent while he's being tracked a high-school enemy who's now a parole officer; Leslie compromises her job in a search for the truth; Mal and Rose have questions about the prodigal Christian's return.
Jake and a dangerous woman team up to find a missing driver and keep a crime war from breaking out; Leslie offers to help Jake and the Doyles despite not getting her therapist's OK; Mal and Des' repo work bottoms out.
Jake chases a suspicious money trail while trying to keep his rabble-rousing bail benefactor under control. Meanwhile, Leslie heads back to work but under new conditions; and Sloan's decisions force Jake's hand.
Season 6 kicks off with Jake struggling to come to terms with Leslie's fate and battling enemies as he tries to solve a case for a hapless inmate. Later, the Doyles try to adapt after Jake's daughter took off with their life savings.