A twelve-year-old boy named Moose moves to Alcatraz Island in 1935 when guards' families were housed there, and has to contend with his extraordinary new environment in addition to life with his autistic sister.

Alcatraz Island in the 1930s isn't the most normal place to grow up, but it's home for Moose Flanagan, his autistic sister, Natalie, and all the families of the guards. When Moose's dad gets promoted to Associate Warden, despite being an unlikely candidate, it's a big deal. But the cons have a point system for targeting prison employees, and his dad is now in serious danger. After a fire starts in the Flanagan's apartment, Natalie is blamed, and Moose...