Mark Hogancamp was severely injured in a bar fight with five men. He now suffers from a serious type of memory loss. By means of revalidation, he sets out to build Marwencol, a miniature Belgian town in the Second World War, inhabited by Barbie dolls and G.I. Joes. For Mark, this fantasy world is an escape from the chaos of reality. When a New York art gallery picks up on his work, he blossoms.