The defining questions of The X-Files have always been, “Is the truth out there?” But the rejuvenated-from-the-dead Season 10 asked a different question: “Where is William?” Remember, he was the son that Scully and Mulder gave away in order to keep him safe. Now, stars Gillian Anderson (Scully) and David Duchovny (Mulder) say we’re finally going to meet the missing young Mulder.