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.

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.

Michael Weatherly and Emily Wickersham - NCIS
Watch NCIS Season 12 Episode 8
"Semper Fortis"
Original Air Date:

On NCIS Season 12 Episode 8, a petty officer is killed via a hit-and-run accident. Also, Gibbs works to clear a Navy Hospital corpsman who has been accused of playing a role in the accident.

A Murdered Master Sergeant - NCIS
Watch NCIS Season 12 Episode 7
"The Searchers"
Original Air Date:

On NCIS Season 12 Episode 7, the murder of a retired Master Sergeant leads to team to uncover a fraudulent charity preying of people searching for missing military personnel.

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

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.

McGee: You know something I don't? Working tonight and tomorrow night?
Tony: No, Tim. It's just that Zoe's parents are in town and they want to have dinner. I'm not ready for that.
Abby: So you deceived her.
Tony: I was put on the spot. I was not prepared.
McGee: Whoa. Hey. What are you afraid of?
Tony: I don't know.
Abby: They're probably really nice.
Tony: I'm sure they are. I've just never had dinner with the parents of a woman I'm seriously involved with.
McGee: That's not true. What about Jon Benois?
Tony: No, technically that wasn't me because I was undercover as Tony DiNardo, professor of film studies. I wasn't myself back then. Meeting the parents for dinner could trigger a whole chain of events.
Abby: It's just dinner, Tony.
Tony: You have dinner yet with Ranger Burt's parents? I didn't think so. Then put down the gavel, take off the robe and stop judging, both of you.
Abby: Okay.