When Tennant and NCIS are tasked with finding a kidnapped social media star, they find that she is not who her husband, or her followers, think she is; the team is at odds with Whistler, who has an agenda of her own.
When a Marine photographer disappears prior to providing testimony to an army court-martial hearing, the NCIS team investigates both the murder he witnessed and a current project centred on military veterans who are homeless in the DC area.