In Plain Sight
S3 E1 Father Goes West A former high line thief from Boston tries to give up crime for the sake of his teenage son, and Mary and Marshall search for the person who nearly killed Mary.
Castle
S3 E22 To Love and Die in L.A While investigating the shooting death of her ex-partner in New York, Beckett comes to believe the suspect has fled to Los Angeles. Against orders, she travels to LA, going renegade to track down the killer, with Castle unexpectedly along for the ride.
Diagnosis Murder
S4 E4 X Marks the Murder After tracking down a serial killer and capturing him moments before Amanda is slain, Mark and Steve must contend with a copycat killer.