NCIS: Los Angeles (2009)

S09E01 Party Crashers

Title: Uninvited Guests Plot: As Season 9 kicks off, Hetty unexpectedly submits her retirement documents and vanishes without a trace. A fresh executive director steps in, quickly shaking up the team by implementing new staffing decisions. In the midst of this turmoil, Sam, grappling with the loss of his wife, urges Callen to seek out a new partner to help him move forward.