Nature is extinct. The outside is dead. Asha lives and works in a specially designed indoor community. When she receives a box in the mail containing soil, she plants an old seed in it, and the seed starts to germinate. Asha appeals for permission to investigate the possibility of life on the outside, but is denied. Asha’s only hope—and the only hope for humankind—is for her to break out of the community and seek a place where she can plant the precious seedling.