Coop's an ex-ballplayer is now a peanut vendor, who takes too much of an interest in the game. But he's passed on his craze for baseball to his son, Christie. When his dad gets fired, Chris makes friends with the former team owner's niece (and her boyfriend Pete), and not only gets his dad's job back, but a batboy position for himself. With his dad's help, Christie begins to make a few suggestions here and there. And as a publicity stunt, the team makes him their youngest manager on record. But when Chris gets sick, Coop has to come to the rescue.
Dan Dailey
as Larry 'Pop' Cooper
Anne Bancroft
as Marian Foley
Billy Chapin
as Christie Cooper
Lloyd Bridges
as Pete Haines
Fess Parker
as McDougal
Ray Collins
as Fred F. Whacker
Richard Egan
as Billy Lorant
Steven Benson
as Kid at Ballpark
Alex Gerry
as J.R. Johnson
Walter Sande
as Barnes
John Gallaudet
as Hyams
John Beradino
as Hank Dreiser