Ep 4. Ghost Gun

Callen and the NCIS: Los Angeles team investigate a case involving a "ghost gun," a weapon that has no serial number and is untraceable. The gun has been used in a series of homicides, leading the team on a search for its owner. As they dig deeper into the case, they discover a network of underground gun dealers and discover that the "ghost gun" is just a small piece of a larger operation.

The episode follows the team as they work to track down the source of the guns and bring those responsible to justice. Callen and Sam go undercover as buyers in order to infiltrate the gun dealers and get close to the people running the operation. Meanwhile, Kensi and Deeks follow a lead that takes them to a seedy bar where they encounter a dangerous group of criminals.

As the investigation progresses, the team discovers that the "ghost gun" is just one piece of a larger puzzle. They uncover a plot to sell weapons to a foreign terrorist group, putting the safety of the country at risk. With time running out, the team races against the clock to stop the sale and prevent a catastrophic attack.

Throughout the episode, the team is faced with a number of challenges and obstacles. They must navigate dangerous situations, deal with unexpected setbacks, and use all their skills and expertise to stay one step ahead of their enemies. Along the way, they rely on their close bond and unwavering loyalty to one another to see the case through to its conclusion.

As the episode comes to a close, the team is able to successfully shut down the gun operation and bring the criminals to justice. They reflect on the gravity of their work and the importance of never giving up in the face of adversity. The case serves as a reminder that there are always those who seek to do harm, but that there are also those who will stop at nothing to protect and serve their country.

Overall, "Ghost Gun" is a thrilling episode of NCIS: Los Angeles that showcases the team's expertise and unwavering dedication to their work. It's a reminder of the dangers that lurk in the shadows and the need for brave men and women to step up and confront them head-on.