Ready to watch NCIS online? This is your chance to relive all of the team's cases, exchanges and decisions, while catching up on anything you may have missed on the long-running and increasingly popular CBS drama.

Reunited - NCIS
Watch NCIS Season 12 Episode 18
"Status Update"
Original Air Date:

On NCIS Season 12 Episode 18, McGee and Delilah are reunited when the investigation into a dead man in a marine's home leads to a terror group from Dubai.

DiNozzo Sr Returns - NCIS
Watch NCIS Season 12 Episode 17
"The Artful Dodger"
Original Air Date:

The NCIS Season 12 Episode 17, Tony's father returns to help the team with his contacts in the black market art world when a murder case that involves a rare painting being stolen.

An Old Alias - NCIS
Watch NCIS Season 12 Episode 16
"Blast from the Past"
Original Air Date:

On NCIS Season 12 Episode 16, a murder victim is found to have been living under an alias Gibbs used in a 20-year-old undercover operation.

Gibbs Help Fornell - NCIS
Watch NCIS Season 12 Episode 15
"Cabin Fever"
Original Air Date:

On NCIS Season 12 Episode 15, Gibbs opts to sit out of an investigation that could lead to his arch-nemesis in order to help Fornell deal with the murder of his ex-wife.

Back to School - NCIS
Watch NCIS Season 12 Episode 14
"Cadence"
Original Air Date:

On NCIS Season 12 Episode 14, the team visits a military academy which DiNozzo atteneded as a kid when a Marina and alumni is murdered while holding the photo for student.

Medals and Murder - NCIS
Watch NCIS Season 12 Episode 13
"We Build, We Fight"
Original Air Date:

On NCIS Season 12 Episode 13, the team investigates when the first openly gay NAVY servicemember set to be awarded the medal of honor is murdered.

Home Grown Terrorist - NCIS
Watch NCIS Season 12 Episode 12
"The Enemy Within"
Original Air Date:

On NCIS Season 12 Episode 12, after a rescue mission in Syria reveals an American was involved in the abduction of a social worker, the team looks for a home-grown terrorist.

The Ex-Wives Club - NCIS
Watch NCIS Season 12 Episode 11
"Check"
Original Air Date:

On NCIS Season 12 Episode 11, the investigates what appears to be copy cat crimes while two of Gibbs' ex-wives show up to discuss something important.

Gibbs' Rules - NCIS
Watch NCIS Season 12 Episode 10
"House Rules"
Original Air Date:

On NCIS Season 12 Episode 10, McGee writes a heartfelt letter to his father reflecting on Gibbs' infamous rules while the team uses a group of cyber-terrorists as consultants.

Airport Analysis - NCIS
Watch NCIS Season 12 Episode 9
"Grounded"
Original Air Date:

On NCIS Season 12 Episode 9, when DiNozzo, Bishop and her husband Jake are all stuck at the airport due to weather, they work on a Thanksgiving holiday terrorist threat.

You're in for some excitement, some danger, a lot of criminal activity investigation and even occasionally a little romance when you watch NCIS online. NCIS stands for Naval Criminal Investigative Service, and involves eight characters, all of whom operate as a cohesive NCIS team, but also serve as each other's friends. The lead guy is Leroy Jethro Gibbs, played by Mark Harmon - a no-nonsense leader who demands a top-notch performance from each of his team mates. Gibbs' boss is Leon Vance, who is played by Rocky Carroll. Leon provides overall direction for three different NCIS services. Gibbs' second in command is Tony DiNozzo, a younger version of Gibbs. Tony likes movies a lot and can drop quotes from some of the classics at a moment's notice. One of Tony's best friends and oldest team mates is Timothy McGee, who is played by Sean Murray. Tim is a computer geek who is able to hack into systems whenever necessary to save lives and advance the investigation. NCIS' medical examiner team is Donald "Ducky" Mallard, played by David McCallum, and his assistant Jimmy Palmer, played by Brian Dietzen. Abby Sciuto is the team's forensic scientist and moral support for the team. The newest member and final member of the team is Emily Wickersham, a woman who has amazing recall and can memorize a book. You can meet all of these fascinating characters as they get called in time and again to resolve murders, crimes and even terrorist activities, when you watch NCIS online!

NCIS Quotes

Tony: One other question, I know you're an expert in English history. And I was just wondering, have you ever heard of Archibald Drummond, the 17th Earl of Trent?
Ducky: The Earl of Trent. No, I can't say I have. Why?
Tony: I was just wondering. Thanks.

McGee: All right. Well you should probably know that Abby and I used to date?
Bishop: Ew. Like, each other?
McGee: Yeah.
Bishop: Wait - isn't that a violation of rule 12, never date a....
McGee: It was a long time ago. After we'd broken up, one night I went to her lab. Found a scribbled piece paper; a list. Potential boyfriends had to fulfill certain conditions by a pre-arranged date or else, goodbye.
Bishop: Such as.
McGee: Things started off relatively normal: opening the door for her, flowers, putting the seat down. Then around number 8, it gets uh...
Bishop: What?
McGee: Does she know you have these?
Bishop: Does she know you have these?
McGee: Yeah she wasn't happy when she found out.
Bishop: These are all very specific.
McGee: Yeah.
Bishop: These ideas apply to you?
McGee: No those rules weren't in place when we were together. At least I don't think so.
Bishop: What's with the two month cutoff? Abby's sabotaging herself. I've seen stuff like this before. We have to talk to her.