When a mailman is killed, the team must work with a brash, eccentric postal inspector, who believes the mailman's murder is part of a larger conspiracy. Maura continues to struggle with the ramifications of her injury, and Angela intervenes when she discovers Korsak has gotten Kiki (recurring guest star CHRISTINA CHANG) a terrible birthday present.

Cast: Angie Harmon, Sasha Alexander, Jordan Bridges, Idara Victor, Adam Sinclair, Bruce McGill, Lorraine Bracco, Yvette Nicole Brown, Christina Chang, Ethan Cohn, Ashli Haynes, Stephen Full, Jenny Cooper