More surveillance footage of Scully walking the perimeter of the lonely, lonely train station. What's going on here? Is she becoming a streetwalker? Oh, look! Moronica is there, right by the vending machine! And so is a man! A tall, tall man! It must be Mulder!

5:41 AM. Doggett, still on stakeout, looks at his watch and then at Moronica, who's sleeping in the seat next to him. He looks up in time to see Mr. Mallory leave the Super-Secret Surveillance Bunker, get in his car, and drive off. Doggett pokes Moronica. She blinks. They give chase.

Scully Household. Mallory is lying on the sofa, wide awake and staring at the ceiling. In the bedroom, Scully sleeps, fully dressed. Mallory creeps off the sofa and peers into Scully's room. Satisfied that her host is asleep, she goes back into the living room and turns off the baby monitor. Hold the phone: Scully left William alone in the living room with a TOTAL STRANGER? OVERNIGHT? She couldn't even move the bassinet into her own room? Oh my God, who is this woman? If anyone should know that you're never totally safe in your own home, it ought to be Dana "My Sister Got Shot In the Head In My Apartment" Scully. As Mallory moves to pick up the baby, Scully's cell phone buzzes. She answers sleepily. It's Doggett. "You awake?" he asks. She mumbles that she just laid down and shut her eyes for a second. Fully clothed. I've so done that. I did that this morning. Doggett tells her that he and Moronica have tailed a guy onto her street -- a guy they bet isn't supposed to be there. And he's just entered her building. Scully half sits up, the blanket falling away from her suit. In the living room, William gurgles. Scully looks stricken, per usual.

Scully comes out of her bedroom, gun drawn. "Put him down. Now," she orders. "Oh my God!" Mallory squeals. "Put my baby down now," Scully reiterates. Mallory does, haltingly, as the front door knob turns behind her. Cue the Tense Music of Impending Horrible Doom.

But no! Out in the hallway, Doggett tackles Mr. Mallory, slamming him against the wall! Then throwing him roughly to the ground! And then he cuffs him! Finally, Moronica turns the corner behind him. She doesn't run very fast, does she? Maybe she was distracted by something shiny on the way into Scully's building.