It looks like young Keith Gridley will have a lonely summer, until he meets a talking mouse named Ralph. Ralph takes an immediate liking to Keith's toy motorcycle and can ride it just by making a motor noise. Ralph even acts heroically when Keith comes down with a nasty fever, while dodging cats, owls and a guest's noisy dog.

• Churchill Films
• Philip Waller
• Mimi Kennedy
• Thom Sharp
• John Byner
• Ray Walston
• Mary Jo Catlett
• Evan Richards
• Zelda Rubinstein