Ep 4. Choke Hold

In NCIS season 12 episode 4, titled "Choke Hold," the team investigates the death of a Marine who died during a fight club. The victim, Lance Corporal Colby Wilson, was found dead in the gym where the fight club took place, with multiple bruises and cuts on his body.

The team begins investigating the fight club, which is run by a former Marine named Travis Major. Major admits to running the fight club, but claims that he had no involvement in Wilson's death. The team also discovers that Wilson's girlfriend, a fellow Marine named Sarah, was involved in the fight club and had a falling out with Wilson just before his death.

As the investigation continues, the team uncovers that Wilson's death may be connected to a larger illegal fighting ring operating in the area. They discover that the ring is run by a notorious criminal named Frankie Vito, who has connections to several powerful people in D.C. including a high-ranking government official.

The team races against time to gather enough evidence to bring down the fighting ring and bring Wilson's killer to justice. Along the way, they encounter several obstacles including corrupt cops and powerful politicians who are determined to protect the fighting ring and prevent the team from uncovering the truth.

Meanwhile, Special Agent Tony DiNozzo deals with personal issues of his own as he continues to come to terms with the death of his father and tries to reconnect with his former love interest, Zoe.

The episode is full of action, suspense, and drama, as the team works to solve the case and overcome the obstacles standing in their way. With high stakes and intense emotions, "Choke Hold" is a thrilling episode that will keep viewers on the edge of their seats.