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.

Abby's Brother Is a Suspect - NCIS
Watch NCIS Season 13 Episode 12
"Sister City: Part 1"
Original Air Date:

On NCIS Season 13 Episode 12, Abby's brother is the main suspect when he goes missing after being the chef on a private plane whose passengers are poisoned.

Ducky Is Attacked - NCIS
Watch NCIS Season 13 Episode 11
"Spinning Wheel"
Original Air Date:

On NCIS Season 13 Episode 11, Ducky is attacked by someone who claims to have some information about his half-brother who died years before.

Bone Marrow Match - NCIS
Watch NCIS Season 13 Episode 10
"Blood Brothers"
Original Air Date:

On NCIS Season 13 Episode 10, after two Marine siblings are killed in battle, the Secretary of the Navy asks NCIS to help their brother find a bone marrow match.

Marital Issues - NCIS
Watch NCIS Season 13 Episode 9
"Day in Court"
Original Air Date:

On NCIS Season 13 Episode 9, a petty officer whose murder case was dismissed on a technicality offers to be court martialed in the hopes of clearing his name.

Jeanne Benoit is Back - NCIS
Watch NCIS Season 13 Episode 8
"Saviors"
Original Air Date:

On NCIS Season 13 Episode 8, DiNozzo meets with his ex-girlfriend, Jeanne Benoit, when insurgents in Sudan attack a group of doctors, including her husband.

Cold Cases - NCIS
Watch NCIS Season 13 Episode 7
"16 Years"
Original Air Date:

On NCIS Season 13 Episode 7, when the team investigates a retired Navy Lieutenant Commander's death, Ducky has to reveal his membership in a secret society.

Serial Killer or Copycat - NCIS
Watch NCIS Season 13 Episode 6
"Viral"
Original Air Date:

On NCIS Season 13 Episode 6, the NCIS team must determine if a serial killer or a copycat is the killer when a petty officer is found murdered.

Hostage Situation - NCIS
Watch NCIS Season 13 Episode 5
"Lockdown"
Original Air Date:

On NCIS Season 13 Episode 5, Abby is trapped at a pharmaceutical lab with no way to communicate to the outside world after armed men break in and take hostages.

Teaming Up - NCIS
Watch NCIS Season 13 Episode 4
"Double Trouble"
Original Air Date:

On NCIS Season 13 Episode 4, when a murder case is connected to a former NCIS agent Vance and Gibbs team up and both end up back in the field.

McGee and Bishop - NCIS
Watch NCIS Season 13 Episode 3
"Incognito"
Original Air Date:

On NCIS Season 13 Episode 3, Bishop and McGee go undercover as a married couple after a Marine is found murdered in Quantico hours after calling Gibbs

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

Abby: McGee, I want to celebrate that you can light up a room as fast as you can ping a phone.
McGee: Well thanks!
Abby: Hashtag: living rocks.
Gibbs: Hashtag get to the point.
Abby: Oh my God, Gibbs. You just used the word hashtag in a sentence

Hugo: Who's asking?
Vance: NCIS
Fornell: FBI
Hugo: WC 10-gauge. Now get the hell off my property.