Richard Sargent

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.

With Mel and Susan Profitt undone, McPike begins dismantling their empire, but Vinnie demands to stay on the case to get to the bottom of Roger Lococco's ties to a rogue CIA operation to stage a Caribbean coup d'etat.