The Best Episodes Written By Vivian Lin

After escaping The Lady's clutches and reuniting with Lucy, the Killjoy trio start to wonder if there is a traitor amongst them.

Charlie and Rex follow the route of a killer after a tech engineer is found dead in her company's self-driving car.

On the trail of a serial arsonist, Charlie is hospitalized after a brush with a bombing breaks his leg. Unable to let the case rest through his recovery, Charlie works the evidence from his bed, hoping to identify the arsonist

After the owner of a construction company is found dead, Charlie and Rex track the killer to an underground casino. Major Crimes goes undercover to solve the case.

After preventing a depressed actuary from taking his own life, Harley goes undercover at an insurance company.

Tensions run high as Tess and Sunny chase a killer on campus, while Matt makes a choice that compromises the investigation.