Finn gives a health update on Doc, Meredith is assigned to work with Callie for the day while George gets paired with Derek, and Burke and Izzie continue to try to find a heart for Denny.
Reese's glittering army career grinds to a halt after he fails to make a decision while in combat.
The team members investigate when a man and his 18-year-old daughter mysteriously go missing.
Mulder pursues a man whom he believes is actually a demon bent on fathering a child.
The family becomes annoyed with the new home alarm system when Jill decides she wants it to have more power.