The Berenty Reserve in Madagascar off the east coast of Africa is famous for its cutest and most popular resident, the ring-tailed lemur. These primitive primates form troops featuring an intricate social system. We followed 2 mothers who were expelled from their group and observed their shared commitment through thick and thin to their friendship and each other's young. It's a tale of perseverance, tragedy and redemption as they carve out a slice of territory between 2 hostile lemur troops.