Tom Butler

During the murder investigation of three identical doctors Mulder makes a stunning discovery regarding his missing sister and Scully's life is threatened by a shape-shifting bounty hunter.

Mulder and Scully (David Duchovny, Gillian Anderson) must outwit a killer computer plaguing a high-rise office building.

In an attempt to recall his plan to defeat the Observers, Walter takes an LSD trip down memory lane in search of answers. Meanwhile, Peter and Olivia trace a mysterious signal into the woods, where they come upon a grisly scene.

After a nuclear incident, the secret of the asteroid becomes public, setting the world on a dangerous course; Darius, Grace, Liam and Harris must adapt to new roles in an ever-shifting landscape of fear and civil unrest.

Desperate to defuse a nuclear standoff, Liam gets help from an unlikely source; with Darius missing, Harris and Grace take matters into their own hands.

Amy vanishes after traveling to Seattle on business; when Jack goes in search of Amy, he only uncovers more questions; an old friend needs help.