Allegiance premiered on NBC on February 5, 2015. Alex O'Connor, a young idealistic CIA analyst specializing in Russian affairs, learns a shocking secret and his close-knit, affluent family is about to be split apart when its revealed that his parents, Mark and Katya are covert Russian spies deactivated decades ago. But today the Kremlin has re-enlisted them into service as they plan a terrorist operation inside the U.S. border that will bring America to its knees. Years ago, Russian-born Katya was tasked by the KGB to recruit American businessman Mark O'Connor as a spy - and the two fell in love. A deal was struck: As long as Katya remained an asset for Russia, and it was agreed that her services could be called on in the future, she would be allowed to marry Mark and move to America. After years in America building a happy life and without word from Moscow, they thought they had escaped. Now it seems that the new Mother Russia has one more mission - turning Alex into a spy. For these anguished parents, the choice is clear: Betray their country or risk their family.