It's 1775, and General George Washington is in serious trouble. He has a ragtag army, a few muskets and some cannons, and no money to fight the world's must powerful empire. His only hope of beating the British is to wage an invisible war - a war of spies and deception.

You are about to enter the shadowy world of double agents and covert operations, of codes and ciphers - a world so secret that even the spymaster himself doesn't know the identities of some of his agents. You'll meet members of the elusive Culper Ring, uncover a "mole" in the Sons of Liberty, and see how invisible ink and even a clothesline were used to send secret messages, as you follow the successes and failures of the Americans in their War of Independence.