When a top-level CIA analyst, Eliza Harper, discovers a hidden network of double agents within global intelligence agencies, she becomes the target of an international manhunt. Racing against time, Eliza must use all her training to expose the mastermind, known only as "The Broker," who is manipulating world events for personal gain. As she follows a trail of clues, she partners with an unlikely ally, a former MI6 operative, Sebastian Wolfe, who has his own agenda. Together, they navigate a world of lies and deceit, where no one can be trusted.