Martin Odum, an operative for the FBI’s Deep Cover Operations unit, possesses the unique ability to assume various identities, whether it’s posing as a Serbian extremist, a corrupt cop from Chicago, a British special forces colonel, or a renowned computer hacker. However, when he discovers that his own existence might be fabricated, he is torn between fulfilling his professional duties and unraveling the enigma of his true self. Faced with this dilemma, Odum doesn’t always choose wisely. “Legends,” produced by the team behind “Homeland,” is inspired by Robert Littell’s acclaimed novel.