There is no refuge from change in the cosmos. There will come a time in the life of the sun when Earth will no longer be a home for us. Explore the story of our ancestors who rose to a comparable challenge, as well as a long-term vision of our future on other worlds.

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.