Moose Flanagan, who lives on Alcatraz along with his family and the families of the other prison guards, is frightened when he discovers that noted gangster Al Capone, a prisoner there, wants a favor in return for the help that he secretly gave Moose.
"Moose Flanagan, who lives on Alcatraz along with his family and the families of the other prison guards, faces new challenges when his father is promoted to Associate Warden"--
Moose has his hands full during the summer of 1936 watching his autistic sister, Natalie, and the warden's daughter, Piper, and trying to get on a baseball team by proving he knows Al Capone.
Thirteen-year-old Lizzie and her secret friend Noah, who is hiding in her house, plan to rescue Noah's father from the quarantined Chinatown, and save everyone they love from contracting the plague that is spreading in 1900 San Francisco.