SPOILER ALERT! This story contains plot points from Monday’s episode of NCIS: Origins on CBS. In the December 9 episode titled "Vivo o Muerto," a case of a missing woman who disappeared after a night of clubbing with a Navy seaman ends up answering some burning questions about Leroy Gibbs’ past.

Viewers are curious to know who killed Leroy Jethro Gibbs’ family members in the CBS series, NCIS: Origins. The NCIS spin-off chronicles the early years of young Gibbs in the 1990s when he joined as a special agent at NCIS Camp Pendleton office.

Origins fall finale is coming up soon, and it’s a big one for Leroy Jethro Gibbs. NCIS: Origins Season 1, Episode 10, marks the first Christmas since Gibbs lost his wife and daughter. It will likely be a difficult night for Young Gibbs ( Austin Stowell),

NCIS: Origins has had many plot holes but episode 9 just revealed that at least one was more of a clever omission than anything else.

Origins" Episode 9. "NCIS: Origins" revisited Gibbs' revenge against the cartel leader who killed his wife and child, which promises to send shockwaves across Mike Franks' team. Episode 9, titled "Vivo o Muerto,

NCIS: Origins episode 9 has finally given some much-needed answers about Leroy Gibbs’ past. The NCIS prequel delves into the backstory of the Special Agent, exploring his life as a newcomer in the field while he grieves the murder of his wife and daughter.

Gibbs, Franks, & Lala head to Mexico for an episode that ends in a jaw dropping revelation. Read the NCIS: Origins Season 1 Episode 9 review!

NCIS: Origins Season 1, Episode 9, “Vivo o Muerto” finally takes us to the moment where Leroy Jethro Gibbs avenged Shannon and Kelly Gibbs’ murder — and surprisingly, that moment is not in the future,

NCIS: Origins started as a prequel series to NCIS, but has been able to carve its own niche among the audience.