This season marks a big shift in this hit show's usual tone; instead of focusing on the push-pull relationship between a doubting Dana Scully (Gillian Anderson) and an insistent Fox Mulder (David Duchovny), viewers meet the skeptical John Doggett (Robert Patrick) and the mysterious Monica Reyes (Annabeth Gish). Scully, who's pregnant, is the believer now, and she's on a quest to find her former partner, no longer a hunter but an abductee.