Teenage twin boys go on an adventure protecting the Great Chain at West Point, which turns into a rescue mission when one of them gets captured by the Redcoats! The year: 1779 The war: the American Revolution The secret weapon: twin boys and a Great Chain at West Point In this third book in the American Revolutionary War Adventures series, John and Ambrose Clark are hot on the trail of the spy who gave away the secret of their father's mission, which ultimately led to him being shot by Redcoats. But when there is an attack on America's new strategic defense on the Hudson River--the Great Chain at West Point--the twins must protect it. They soon discover things aren't always as they seem and their friends have deadly connections. Discover how the boys' faith in Providence and each other help the cause for Liberty!.