The thrilling story of an elite group of Cuban spies sent undercover to the US in the 1990s. From their recruitment, training and eventual capture on US soil; this film peers into a secret world of false identities, love affairs and betrayal. Using never seen before footage from the Cuban Film Institute’s archive and first-hand testimony from the people at the heart of this story, Castro’s Spies gives a rare glimpse into the shadowy world of a spy – where the stakes are life and death.