Castle: 3x15
The Final Nail
Castle and Beckett find themselves on opposite sides of the case when Castle’s old school friend emerges as the prime suspect in his own wife’s murder. As they work to solve the crime, Castle comes to realize that one of two terrible things must be true… Either Detective Beckett is about to arrest an innocent man for murder, or his old friend is a cold-blooded killer.
3 - 1A Deadly Affair Sep. 20, 2010
3 - 2He's Dead, She's Dead Sep. 27, 2010
3 - 3Under the Gun Oct. 04, 2010
3 - 4Punked Oct. 11, 2010
3 - 5Anatomy of a Murder Oct. 18, 2010
3 - 63XK Oct. 25, 2010
3 - 7Almost Famous Nov. 01, 2010
3 - 8Murder Most Fowl Nov. 08, 2010
3 - 9Close Encounters of the Murderous Kind Nov. 15, 2010
3 - 10Last Call Dec. 06, 2010
3 - 11Nikki Heat Jan. 03, 2011
3 - 12Poof! You're Dead Jan. 10, 2011
3 - 13Knockdown Jan. 24, 2011
3 - 14Lucky Stiff Feb. 07, 2011
3 - 15The Final Nail Feb. 14, 2011
3 - 16Setup (1) Feb. 21, 2011
3 - 17Countdown (2) Feb. 28, 2011
3 - 18One Life to Lose Mar. 21, 2011
3 - 19Law & Murder Mar. 28, 2011
3 - 20Slice of Death Apr. 04, 2011
3 - 21The Dead Pool Apr. 11, 2011
3 - 22To Love and Die in L.A. May. 02, 2011
3 - 23Pretty Dead May. 09, 2011
3 - 24Knockout May. 16, 2011