The episode begins with Castle preparing cappuccino for Kate. Kate came home late last night because she was on a case where some guy blew up an apartment downtown. She tells him that there was a man who was spotted fleeing the scene in his car, but there are no leads as of now. They flirt for a while. Kate receives a call from work and she is informed that they got a hit on the plates from the traffic camera footage. She leaves for work. Castle and Kate meet Ryan, who tells them that the car belonged to a man named, Archibald Fosse. Fosse killed his bookie with a car bomb, six years ago. He was supposed to do life, but his case got overturned by an appeal three months ago. ..Read the full recap
Originally scheduled to air as 5x21, it was switched with "The Squab and the Quail" because of the bombings in Boston on April 15, 2013.