When General George Washington beat a hasty retreat from New York City in August 1776, many thought the American Revolution might soon be over. Instead, Washington rallied, thanks in large part to a little-known, top-secret group called the Culper Spy Ring.

Shares the true story of an anonymous group of spies who played important roles in winning the Revolutionary War, documenting how they risked their lives to obtain crucial intelligence for General Washington using sophisticated tactics and complex codes.