Robert Lewis

When two fathers on opposite sides of the country are inexplicably murdered at the exact same time in the exact same way, Mulder and Scully find that their eight-year-old daughters are perfect twins and were created in order to continue The Litchfield Experiment, a mysterious eugenics project.

Mulder is called to a hostage situation involving Duane Barry, a former FBI Agent who claims to be an alien abductee and wants to get back to the abduction site with someone who will be taken instead of him. Unfortunately, the someone he chooses is Scully.

Not knowing whom they can trust, a reunited Mulder and Scully must continue their investigation without the help of the FBI.

The crew must escort Beka's evil uncle (John de Lancie) to Sinti for an election.

The sliders land in the thick of an invasion, and Quinn brings down one of the plundering ships, only to find things are not as they appear.

A biologist (Melissa Gilbert) discovers a race of aliens but loses control of her ship to a mutinous crew.