Carrie and Al work alongside the secret service as they investigate a murder. As the investigation continues it soon becomes apparent they have come across a counterfeiting ring run by an assasin.
Carrie and Al investigate the death of a boxer, when he is beaten to death. The clues suggest that the victim hadn't tried to defend himself or fight back against his attacker.
Carrie and Al delve into the murky waters of office politics and government scandals when a reporter who broke a salacious story about the director of the NSA is found murdered. Meanwhile, Agent Simms returns to assist Carrie, and Al reconnects with an old girlfriend who may be able to help on the case.
Carrie recognizes the victim of a murder case as someone that she played poker with at a underground casino. Once she admits to the illegal activity she was involved in, she realizes her job is now on the line and volunteers to go back to the tables undercover to try and solve the case.
Al and Carrie take a look at the murder of a Coast Guard officer and need to find a missing block of C-4 explosive.