It was the largest voyage of exploration to the Arctic that the British Empire had ever launched. Led by seasoned naval captain Sir John Franklin, 128 men set off from London in May of 1845 to pioneer a route through the icy Northwest Passage. Three years later, there was still no word from Franklin or his men, and the shaken Royal Navy launched a series of search parties. In this audio slide show, historian Russell Potter guides us through how the mystery of the lost expedition was solved.
This feature originally appeared on the site for the NOVA program Arctic Passage.