Michael "Mick" Harrity

An office mess -- A mysterious person in the office has made a huge mess in the microwave and will not clean it up. Meanwhile, Michael (Golden Globe winner Steve Carell) has to come to terms with the fact that there have been certain personnel changes in his staff without his knowing. Rainn Wilson, John Krasinski, Jenna Fischer, B.J. Novak, Ed Helms, Leslie David Baker, Brian Baumgartner, Kate Flannery, Mindy Kaling, Angela Kinsey, Phyllis Smith, Oscar Nunez, Paul Lieberstein and Creed Bratton also star.

When Barney loses his "mojo," he attends the Victoria's Secret Fall Fashion Show after-party to get himself back on track, but his smooth operating skills are put to the test when he meets supermodel Heidi Klum.

The NCIS team investigates the murder of a retired SEAL who tracked down individuals impersonating military personnel. But the case takes a mysterious turn when the lead suspect is found with the Navy-issued jacket of an officer believed to have been killed in the line of duty in Afghanistan. Also, Brody discovers the normally holiday-obsessed Lasalle is inexplicably unenthusiastic about Christmas.

Following the Rangers' decision to take justice into their own hands, Major Beck goes to extreme measures to prove he's in complete control of the town, while Hawkins receives a call from Chavez telling him that it's time to transport the bomb.

McAlary celebrates his 40th; Bernette gets a break in her case; Annie dumps her band; Lambreaux insists that Delmond carry on as Big Chief after he's gone; Everett returns to New Orleans.