Editor's Note: The following contains spoilers for Season 22 of NCIS.Alongside its cop procedural framework, the highly acclaimed show NCIS has consistently given us an overarching "big bad" to be wary of as we mull over the details of each weekly case. In Season 22, the show laid the groundwork for its next major villain right from the very first episode, or so we thought. Nick Torres (Wilmer Valderrama) was on an undercover mission that involved infiltrating a powerful cartel called Nexus, but his cover was blown due to a potential mole in the bureau. The MCRT's investigation pointed to Gabriel LaRoche (Seamus Dever) being the mole, but the team's ability to further explore this was curtailed by his new position as the deputy director of the NCIS, as well as a lack of solid leads.