Doggett and Scully go into the baby's room, where Buck is bleeding on the ground. "You gotta tell me what this is," Doggett offers pleadingly. "Who is this, Dana?" Scully spits that he's the undercover FBI agent who came to kill William. "You gotta help this man," Doggett says. "Not until he tells me why," Scully says, glaring at the body. Doggett tells her that Buck isn't in any state to tell anyone anything, and that he needs to get to the hospital. Scully shakes her head angrily and spits that she's not going to let the FBI cover its tracks again. She leans over, grabs Buck by the shoulders, and shakes the hell out of him. "Why?" she yells "Why do you want to hurt my son?" Doggett picks up the phone and looks at her. Scully yells at Doggett to put it down. "He has to answer me!" she yells. Doggett just dials. "What?! Say it!" Scully yells at the semi-comatose Buck. "Your son..." he breathes. "Say it!" Scully screams. "Has to die," Buck forces out. "Why?" Scully keens. "Who told you that? He's my son! He's my son!"
Finally, EMS comes and hauls Buck off to the hospital. Scully stands in the corner of the hallway and watches, a hand over her mouth. I think Scully might be cracking up. Not without good reason, of course. But cracking nevertheless. Maybe the series will end with her being carted off to a mental hospital, leaving William to be raised by a reconciled Doggett and Skinner in a cozy Vermont farmhouse. Oh, save the angry emails; I don't really want Scully to end up in the nut hut. I'm just throwing it out there. So, Doggett asks Scully if Buck had a weapon. "A pillow," she whispers. Not a pillow! There should be a waiting period before you can get one of those. "Whatever brought him here, I hope to God we figure it out," Doggett says. Scully looks tearfully at her manicure, and then over at the blood and guts on the floor of her baby's room. Something catches her eye, and she goes over to Buck's jacket. She finds a piece of spaceship in the breast pocket, and holds it in her hand for a moment, looking thoughtful.
Calgary. The Sun is flung at the foot of a newsstand. The headline reads: "Missing FBI Agent Shot in Washington." Because nothing ever happens in Canada that would take precedence over that news. A woman in an overcoat (identified by the official site as "Overcoat Woman") stares at the paper for a long minute before buying it and running off.
The Dig. More digging. Overcoat Woman stomps into the tent and heads directly to talk to one of the archeologists. Let's call him Ross (archeology, paleontology -- close enough). "What is it?" he asks her. She tosses the paper at him. He heaves a giant sigh. "This changes everything," he says. Overcoat Woman glares. "He can expose all this. He's got proof. He can show them. What do you want to do?" Ross stares blankly. "There's only one thing to do," he says. She nods, and stomps off.