Grandpa's dream was always to get a High-School Diploma, but he never did because he had to work, so Arnold tries to make him go through grade school over again to fulfill his dream.
Elenco:
Spencer Klein
,
Jamil Walker Smith
,
Francesca Smith
,
Blake McIver Ewing
,
Anndi McAfee
,
Olivia Hack
,
Justin Shenkarow
.
