Peter Gannon

On Barney's wedding day, the friends remember the time they encouraged Ted to go after the one that got away.

Gibbs second-guesses himself when Vance assigns a rookie to work with him on the team's investigation into a deadly bank robbery.

When Oscar (Oscar Nunez) joins a trivia night contest, Andy (Ed Helms) decides to get the whole office involved. Meanwhile, Dwight (Rainn Wilson) visits Sabre headquarters to explore other job opportunities. James Spader, John Krasinski, B.J. Novak, Leslie David Baker, Phyllis Smith, Angela Kinsey, Brian Baumgartner, Kate Flannery, Paul Lieberstein, Mindy Kaling, Creed Bratton, Craig Robinson, Ellie Kemper and Zach Woods also star.

A serial killer in the Olympia, Washington area has abducted four blonde,young women. When the third victim is found embalmed, the BAU are called in and suspect that the embalming may be a way for him to spend more time with them.

The team investigate a copycat killer, who is busy recreating the techniques of past infamous murderers.

Rosewood's annual father-daughter dance creates generational conflict between its participants; Ashley looks into Hanna's affairs with help from an unexpected source.