Watch StreamingCommunity. Before he wrote the book that revolutionized the way people understood evolution, a young Charles Darwin found himself, by chance, on a strange sea voyage. This is the story of the HMS Beagle, which traveled from Great Britain to survey South America's coastline, but also became part of its Captain Fitzroy's flawed social experiment. It's a tale of bold exploration, tragic miscalculation, the death of a civilization, and the birth of Darwinism.