Tom Degnan

Flashbacks to Finch's adolescence provide insight into his creation of The Machine. Also, the team receives the number of an already dying man, and Reese leaves the POI team behind in the aftermath of the war with the crime organization, HR. Camryn Manheim and Saul Rubinek guest star.

A recent loss creates a rift between Booth and Brennan, as they deal with their grief in different ways. Meanwhile, an old flame from Brennan’s past comes to visit.

Peter gets acclimated to life at home and works on a comeback strategy with his political team. Meanwhile, Alicia and Diane wrestle with spousal privilege laws in a murder case that hinges on their ability to get a wife to testify against her husband.

Gil Grissom and Sara Sidle come to the aid of a former colleague who is implicated in tampering with evidence; Maxine and the rest of the CSI team work the murder of a couple slain on their wedding day.

A person of interest in a bribery and fraud case is found murdered after a runner is led to his body by a strange voice; McGee and Delilah disagree about finding out their baby's sex.

Danny and Baez meet with resistance while investigating a bombing; Frank deals with political fallout after a man punches an aggressive officer.