Leslie's team find themselves on the back foot as Bobby Newport hires a fiery Washington hotshot (Kathryn Hahn) to run his campaign.
Preparing the Summer Events Catalog, Leslie decides to take Ron and the past directors of the Parks Department out for a picnic lunch.
The day has come for Private Brian Dancer to be released from Sacred Heart - surely all will now be well? Meanwhile, Dr. Cox informs Carla that her jokes are just not funny.
Gibbs and Ducky see an antique war stick on television, and it could be the missing murder weapon to a 16-year-old cold case.
Grace: In the final episode, Hank comes to terms with Becca's wedding and is torn between Karen and Julia. (S7, ep 12)