Twelve-year-old Brann Connell has always thought of this father as a loser - a washed-out man who has built a silent, passive wall around himself. A wall that keeps life at a safe distance. Fed up and frustrated, Brann crawls into the fortress of building blocks his father has built in the basement and falls asleep. When Brann wakes up, he's in an entirely different place and time - and he meets a boy. A boy who will show hime that a frienship can break down even the strongest walls.