Christian Gehring

Phil is all in on project hatch-the-duck-eggs, even building a whole habitat for them — no one else is as enthused about this project and Lily is the only one suckered into helping him. Claire, meanwhile, is nervous about pitching her new closet ideas to Jay and his creative team, and for good reason it seems. And, Gloria and Manny help each other out with their respective “crushes,” while Cameron develops an unhealthy attachment to the frat guys renting their upstairs unit.

The Jeffersonian team investigates the death of Brian Thomas, the head swim coach at a community college, whose remains were found dumped at the bottom of a well. When possible suspects tell Brennan and Sweets that Brian may have been having an affair, the team digs a little deeper only to find details of Brian’s secret life. Meanwhile, Sweets fills in for Booth in the investigation while Booth prepares to testify before a Congressional sub-committee and the Jeffersonian team gets a new intern who catches Sweets’ attention.

The NCIS team must rely on Twitter for a case involving a missing Navy Lieutenant. Meanwhile, McGee misplaces his badge but withholds the information from Gibbs and the authorities.

The squad must work quickly to track down a serial killer before he strikes again. Meanwhile, things get dangerous over a game of chess. Recurring guest star MALCOLM-JAMAL WARNER appears as Lt. Chuck Cooper.

Callen's father is apprehended as part of an exchange for two Americans held hostage in Iran.