'NCIS: LA' season 7 spoilers: Callen plays with high-tech gadgets while looking for killer of tech expert in episode 13

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The NCIS team will go undercover while dealing with a high-tech criminal in the next episode of "NCIS Los Angeles" season 7.

According to the synopsis for the upcoming episode, Callen (Chris O'Donnell), Hanna (LL Cool J) and the team will look into the death of a tech entrepreneur-turned-venture capitalist who was coming up with a computer program that can collect data without being detected called "Daemon."

Based on the trailer for the episode titled "Angels & Daemons," Callen will go undercover at the tech firm to find out the culprit in the crime. But the NCIS special agent will have a grand time doing the undercover mission because of the gadgets and hovertrack that he will use at the workplace.

Despite all the fun, Callen and Hanna will remain focused on their task to capture the killer. They also have to make sure that the daemon program will not be obtained by the wrong people because using the data collection without being detected can cause massive troubles.

The episode will air Monday, Jan. 18.

Meanwhile, earlier reports revealed that Callen will finally learn what the letter G in his name stands for.

"It was always my intention to reveal Callen's identity before the series ended," executive producer Shane Brennan previously told Entertainment Weekly. "We've had a lot of fun finding out who Callen is, and from where he came. I wanted the audience to have the opportunity to enjoy that moment. And while he's now discovered his identity, Callen's odyssey isn't over. In many ways, it's just beginning."

Fans have been wondering about the meaning of the letter in Callen's name since the beginning of the series. This time, the mystery in the special agent's identity will be finally unveiled.

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