Prague, 1983. Claire Markham, a New York antiques dealer, is recruited for a mission behind the Iron Curtain by a mysterious stranger whose organization, the New Exodus Project, arranges for Soviet Jews to emigrate to Israel. Intrigued, Claire agrees to help a Russian woman visiting Czechoslovakia to defect to the West. But when the exfiltration plan goes awry, she finds herself in a desperate race to the border, hunted by the KGB and the Czechoslovak secret police, the StB, with the odds of her escape waning by the hour.