The initial investigation into the death of a research scientist leads to an animal-rights group until evidence surfaces that her husband’s affair with a coworker may point to a possible…

In Victorian London, someone is killing prostitutes, someone the police have dubbed “Jack the Ripper.” On the face of it, John C.V. York (Cary Elwes) is a likely suspect. A…

Dan’s attempt to enliven a boring work day has chilling effects. Reusing evidence from a cold case file to jumpstart his auto investigation, Dan puts himself and Jack in the…

A recovered Daniel explores Atlanta and enjoys a taste of big-city anonymity, while Amantha starts packing up her apartment. Tawney grows frustrated with Ted, Jr.’s ever-shifting moods, forcing him to…

Dr. Weaver meets her birth mother, but their relationship changes when Kerrie reveals she is gay. Dr. Carter causes a commotion when he confronts a couple hoping to scam some…

The staff attends to an intern from another hospital who has short-term memory loss. This intern, named Marshall, also has caused a car accident that involved a married couple, their…

Olivia joins forces with the Strike Team to catch a Mexican drug king and his shipment. Meanwhile, Dutch cleans up Billings’ mess, and the death of a woman associated with…

Vic closes in on Shane, Mara and their sick young son; Claudette dismantles the Strike Team; Pezuela offers Acevada “assistance” for his mayoral campaign; Rita Denton (Frances Fisher) comes on…

Claudette encounters a murderous old nemesis; Vic confronts Olivia about her political connections; Dutch’s case gets personal.

The gang war erupts in unexpected ways that Vic cannot control; Dutch and Billings’ homicide investigation grows into something more disturbing; Cassidy reaches out to Danny.

Mulder and Doggett join forces to investigate the arson attack on a genetics lab where one of the doctors suspected of experimenting with alien impregnation is killed. They encounter Billy…

Gloria revisits her stepfather’s past to try and find some answers.