Cosmos S03E04 - Vavilov

In the first half of the 20th century, pioneering geneticist Nikolai Vavilov traveled five continents to assemble a treasury of the world's seeds. He dreamed that science could be the means to end hunger, and his refusal to tell a scientific lie cost him his life. Witness the heroism of his colleagues and its direct impact on our lives in one of the most stirring stories in the history of science.