Dexter frantically searches for clues for Debra's whereabouts when Rudy, finally revealing himself as the Ice Truck Killer, abducts her and forces Dexter into a series of mind games to find her where he finally reveals his connection to Dexter: "Rudy" is actually Brian Moiser, Dexter's long-long biological brother. Meanwhile, Lt. Laguerta locks horns against her replacement Lt. Esmee Pascal, who's even MORE officious and pompous than her or Captain Matthews, and who hampers the case by ignoring key evidence to further advance her own personal career. Sgt. Doakes finally comes to blows with Dexter over his denial with knowing the Ice Truck Killer, and Rita is contacted by the imprisoned Paul who tells her that Dexter framed him for his drug possession charge.