Charlie and Reese work a case so cold it's frozen.

While investigating a triple execution-style homicide, Reese and Crews go up against an old nemesis, a Russian mob boss who has woven a deadly and wicked web.

Reese receives and offer to join an FBI organized crime task force, leaving Crews and Stark to partner up. The former partners work on a case of a philandering financial advisor who was murdered and discover a case of corporate and political corruption.