Ep 18. Exchange Rate

In the season 7 episode 18 of NCIS: Los Angeles titled "Exchange Rate," the team is called in to investigate a case involving a mysterious female assassin. The episode begins with Sam and Callen undercover at a black market event, where they are posing as arms dealers. Their mission is to acquire information about a well-known assassin who goes by the name of The Scorpion. As they navigate the event, they encounter a woman who seems to fit the description of The Scorpion, but before they can make a move, she vanishes.

Meanwhile, Kensi and Deeks are tasked with investigating the murder of a currency trader. The victim was found dead in his office, and it appears that someone stole a large sum of money from his safe. As they delve deeper into the case, they begin to suspect that there may be a connection between the murdered trader and The Scorpion.

As the investigation continues, the team discovers that The Scorpion has been hired to kill a high-ranking official who is visiting the city. The team must work quickly to identify the target and prevent The Scorpion from carrying out the assassination. Along the way, they encounter a number of obstacles, including corrupt officials and intense danger.

Throughout the episode, the characters' personal lives also come into play. Kensi and Deeks must navigate their complicated relationship, while Callen struggles with unresolved feelings for his former partner, Joelle. Meanwhile, Hetty is dealing with a personal crisis of her own.

As the episode comes to a close, the team successfully identifies the target and is able to prevent The Scorpion from carrying out the assassination. The murderer of the currency trader is also brought to justice. However, as with all NCIS: Los Angeles episodes, there are sure to be plenty of twists and turns along the way.

Overall, "Exchange Rate" is an exciting and action-packed episode of NCIS: Los Angeles that will keep fans on the edge of their seats. With a compelling storyline, plenty of suspense, and strong character development, it is a must-watch for any fan of the series.