The teaser for tonight's episode of "NCIS: Los Angeles" season 7 episode 15 opens with Special Agent Hetty telling Special Agents Callen and Sam, "You're agents on an unsanctioned mission," with concern written all over her face. A few scenes later, she is shown again saying, "I can't guarantee your safety."

The two-part episode will focus on the team's efforts to save retired KGB officer and NCIS liaison Arkady Kolcheck from his abductors. The mission will involve his daughter, Anna Kolcheck. In another trailer, Anna enters the scene is riding a motorcycle on what seems to an offensive attack to the team before she was identified.

Spoiler TV shares the synopsis: "In order to locate Arkady in Russia, the NCIS team goes undercover with his daughter, Anna (Bar Paly, at a gala in Los Angeles to gain access to the Russian Consul General's computer, on part one of a special two-part episode of 'NCIS: LOS ANGELES,' Monday, Feb. 8, on the CBS Television Network."

From a brief hiatus, "NCIS LA" returns with an episode described by Design & Trend as full of action and intrigues with ample drama in attempts to find Arkady. It also reveals that the first part will feature Kensi as an undercover waiter in the gala party, Callen as Anna's date and Sam also a guest in the party while Deeks stays on the sideline.

It would seem like the Special agents will find themselves in a difficult situation as Design & Trendhas also revealed that on the second part of the special which airs on Feb. 22, NCIS Intelligence Analyst Nell Jones and her assistant, Technical Operator Eric Beale, will be seen on the field.

Episode 14 showed Kensi and Deeks taking their romantic relationship a step further. Will the next episode bring Anna and Agent Callen closer again? Tune in to find out.