The X-Files: Season 2, Episode 17

2 - 17: End Game (2)

Impersonating Mulder, the Bounty Hunter takes Scully as his hostage. Mulder and Samantha nervously wait for him to contact Mulder to make a trade: Samanta for Scully. Mulder, however, does not want to lose either of them and goes to Skinner for help.