A tornado touches down on a murder scene, damaging the evidence and putting Ryan and Walter in grave danger.

The CSIs expose the seedy underbelly of children’s beauty pageants when a contestant’s mom is murdered.

The team hunt for a serial killer before he can take another victim – who may be one of the team.

The CSIs uncover an exclusive hunting club where the prey is human.

Horatio and his team are hunting a sadistic psychopath who tortures women – and one of them may still be alive.

When a delivery truck driver and a housewife on his route are murdered, the CSIs try to find their connection.

Mexico’s deadliest assassin is a target in Miami. Horatio’s only hope is his worst enemy.

When the investigation of a dead millionaire leads the CSIs to an elite dating service, Ryan poses as a wealthy businessman to expose the matchmaker’s lies.

After a fire hydrant washes away evidence, the team must recreate a bizarre double murder.

The team investigates a murder at a roller derby match.

After Sam’s undercover mission in Sudan turns deadly, Callen and the NCIS team must track down their missing agent before it is too late.

A botched assignment forces Hetty to fire Deeks and send him back to the LAPD. Meanwhile, an awkward goodbye between Kensi and Deeks leaves her with unexpected emotions for her…

The NCIS team must locate a classified device with the power to destroy Los Angeles that was stolen from a college research facility. Meanwhile, Sam tries to track down a…

The NCIS team joins forces with the NSA to find the creator and controller of a software program linked to a cyber attack against the Department of Defense. Meanwhile, Callen…

Special Agent Sam Hanna is sent undercover as a bomb specialist as the team races to locate stolen explosives somewhere in the city. Meanwhile, to much protest, Hunter changes the…

The NCIS team delves into the underground world of the Libyan resistance movement following the murder of a news reporter, and Hetty reveals details about Callen’s past.

The LAPD calls upon the NCIS team when a raid links a Mexican drug cartel to a wanted terrorist. Meanwhile, Sam’s most prized possession is stolen.

The NCIS team investigates the murder of a former Navy intelligence officer who had been living a double life and traveling overseas on false passports.

The NCIS team must determine whether a dishonorably discharged Marine is the target of an international set-up or if he committed murder

When a Navy ID is found on a dead body tied to a hazardous material smuggling case, NCIS is granted permission to investigate in Mexico and asked to help locate…

The Special Projects team travels to Romania to search for Hetty, while delving into the history of the Comescu crime family, and their connection to Callen.

Deeks’ morning routine is disrupted when he is shot during a convenience store robbery, leaving the NCIS team to investigate whether he was the assailants’ intended target.

Sam resumes a former alias and boards a one-way flight to Yemen in hopes of tracking down a terrorist group’s leader and rescuing the hostage son of a Saudi Prince.

NCIS investigates whether the life of a Venezuelan politician is in danger after a Navy Intelligence Commander who is responsible for tracking his moves suddenly disappears.

When an attempted robbery takes place at a secure facility on a Marine base, Kensi must determine what the thief intended to steal.

After a rocket engine expert is killed, NCIS tech operator Eric Beale goes undercover for the first time to ensure that the classified technology used to build satellites is safe.

Deeks resumes an old alias he is not fond of in order to protect his best friend and chief informant from a criminal group that wants him dead.

A Navy SEAL imposter’s death gives the team a lead on a missing canister used to make deadly bombs.

Hetty’s sudden resignation prompts Callen and the NCIS team to investigate the reason why she would disappear in the hopes of tracking her down.

The NCIS team uncovers an experimental Navy tracking system when a body containing a top-secret residue is stolen from an autopsy room. Meanwhile, Callen challenges Hetty on the rock wall.

The team looks for the person responsible when classified pentagon documents are uploaded to a blog site.

Sam goes undercover as a prisoner to track down a terrorist group responsible for several bombings around the world.

After Callen catches a man breaking into his house, a former KGB operative leads the NCIS team to a shipment of counterfeit computer chips entering the United States.

Suspicious of an undercover venture involving a deal between corrupt cops and military personnel, Callen and Sam try to expose the illegal operation by posing as California highway patrol officers.

Penny is worried with how damaged her friendship with the guys will be in the aftermath of her sleeping with Raj while Sheldon becomes the leader of the paintball team.

A fight between Sheldon and Penny leaves Amy caught in the middle, while Leonard tries to spice up his long-distance relationship with Priya.

Leonard and Amy get to know each other better, while Howard and Bernadette spend the weekend with Mrs. Wolowitz.

Penny plays Matchmaker for Raj, which results in him finding a girl he is comfortable talking to.

Sheldon and Leonard get invited to a party at Wil Wheaton’s house, and Howard gets an out-of-this-world opportunity.

Sheldon’s mother, Mary Cooper, comes to visit, but Sheldon is annoyed that she also spends time with the rest of the gang, instead of catering to his every demand.