Gibbs and His Teammates Try to Cover Up a Dark Secret in 'NCIS: Origins' Season Finale Sneak Peek [Exclusive]

The past is coming back to haunt Leroy Jethro Gibbs (Austin Stowell) in the season finale of NCIS: Origins. The first season of the prequel series to the long-running crime drama NCIS concludes Monday with Season 1, Episode 18, "Cecilia." The consequences of Gibbs shooting and killing Pedro Hernandez in Mexico for the murders of Gibbs' wife and daughter are rearing their ugly head. Both Lala Dominguez (Mariel Molino) and Mike Franks (Kyle Schmid) already know Gibbs' dark secret, but Bernard "Randy" Randolf (Caleb Foote) is still currently in the dark. Collider is unveiling an exclusive sneak peek of the episode with a heated discussion that may lead to Randy being in the dark no longer.