Nine-year-old Boon has grown too old to see her imaginary friend O'Diddy, so in his lonesome desperation he concocts a scheme to force her into remembering him.
Fourth grader Tommy Price, Jr., and his friend Bonnie Sue, whose families work for area rodeos, investigate the mysterious occurrences that threaten to close down the Red Bluffs Rodeo and stop country singer Mel Jones from performing.
Explains the formation of different kinds of clouds, what they are called, what they indicate about changing weather, and how they "make" rain, snow, sleet, hail, or fog.