Nova: Lost at Sea - The Search for Longitude

Before global positioning systems and modern map making, the concept of longitude was just a dream. Without it's guidance, navigation in the 1700's was both unpredictable and deadly until one man solved the mystery. Richard Dreyfus's narrates this dramatic recreation of longitude's difficult birth, and the remarkable history-making life of a country carpenter named John Harrison. Go back in time to see history, and longitude, in the making.