Editor's Note: The following contains spoilers for NCIS Season 22, Episode 17.The Season 22 premiere of NCIS introduced us to Gabriel LaRoche (Seamus Dever) as the guy who got hired as the Deputy Director over Timothy McGee (Sean Murray) and as the bureau's potential mole. Despite this polarizing entrance, he hasn't really been casting much suspicion on himself throughout the season, with only McGee obsessively keeping tabs on him, though the team simply chalks this up to jealousy over the lost promotion. However, Episode 17 feels like a turning point in this storyline as LaRoche's relationship with McGee takes center stage and more evidence (albeit circumstantial) against him is exposed.