WATCH: Preview "Mountebank", An All-New Episode Of NCIS: Los Angeles
And who better to help out the team on a Russian mafia investigation than Anna's father, Arkady Kolcheck (guest star Vyto Ruginis)?
Meanwhile, one of Callen's ( Chris O'Donnell) aliases becomes the victim of credit card theft, and Mosely ( Nia Long) thinks it's tied to something bigger.
Will the Office of Special Projects be able to thwart the Russian mob?
STREAM: Full Episodes Of NCIS: Los Angeles On CBS All Access
Watch all-new episodes of NCIS: Los Angeles on Sundays at 9/8c on CBS and CBS All Access.