Moose goes to a new school and so does Natalie, but she is going there because she has autism and needs it to be treated.
Moose has to bring Natalie around everywhere just like a normal sister, the problem is she isn't normal and stops every while to count rocks.
Natalie doesn't pass a test that allows her to continue to work with a specialist. Moose asks his friends if there was a way to get a letter to a con asking them if they could help Natalie. A girl named piper (who's dad is the head of Alcatraz prison) said she could help but it would have to be secretive.
Piper: I can help... but we have to be secretive...
Moose writes a letter to AlCapone asking if he can get con 105 to come and help Natalie.
Natalie developed a relationship with con 105 earlier.
AlCapone responds with a note saying done on Moose's freshly washed shirt.