Burt is an alien from a distant galaxy with advanced technology, but an accident has made his parents disappear and trapped him on Earth. That's his story, anyway. From the perspective of his foster mother, Lydia, Burt is a confused and lonely little boy who's difficult to understand and lives in his own world. Burt struggles to adjust to his new home, and Lydia tries her best. But when Burt embarks on a plan to teleport home once and for all and ventures into the cold all alone, Lydia will have to find a way to bridge the gulf between them.