When a Marine photographer disappears prior to providing his testimony in an Army court-martial hearing, the NCIS team investigates both the murder he witnessed as well as his current piece on military veterans who are homeless in the D.C. area.
When Tennant and NCIS are tasked with finding a kidnapped globe-trotting social media star, they find that she is not who her husband, or her followers, think she is. Also, the team is at odds with Whistler, who has an agenda of her own.
Fort Marshall prepares to welcome military dignitaries for its centennial celebration; Hector and Gloria deal with the aftermath of Penny's return.
Claudia Joy recovers from surgery; David begins to communicate with Marcus; Trevor worries about Roxy; Hector and Gloria continue to argue; a vacation turns terrifying.
The group learns that Fort Marshall is merging with an air force base; the troops deploy to Afghanistan; Joan makes a decision about her career.
