This Thing of Darkness

1828 - Brilliant young naval officer Robert FitzRoy is given the captaincy of HMS Beagle, surveying the wilds of Tierra del Fuego, aged just twenty-three. He takes a passenger: a young trainee cleric and amateur geologist named Charles Darwin. This is the story of a deep friendship between two men, and the twin obsessions that tore it apart, leading one to triumph and the other to disaster...