Linchpin
- Episode aired Feb 20, 2012
- TV-PG
- 45m
Castle and Beckett race to find the "Linchpin" in order to stop the first domino in a chain of events which will plunge the United States into war.Castle and Beckett race to find the "Linchpin" in order to stop the first domino in a chain of events which will plunge the United States into war.Castle and Beckett race to find the "Linchpin" in order to stop the first domino in a chain of events which will plunge the United States into war.