Kiddie farce--pegged to a half-hour Problem. ""When your older brother is Roger Fingler, the superjock, it's tough being Warren Fingler, the super nonjock."" But eleven-year-old Warren, facing a summer at Camp Hit-a-Homer, also confides in super-gift-athlete (and secret Roger-admirer) Laurel, 14, his ""horrible secret"": he's terrified of hitting or catching a ball. Lessons from sympathetic Laurel don't help; but a try at horseback riding does gain Warren a broken arm and temporary hero-status. Then he challenges class show-off Claire Van Kemp to a Jay Cee money-raising contest; and when Claire's junk food barbecue outdraws Roger Fingler (health-food) Miracle Milk, Warren comes up with a sure-fire idea: an exhibition baseball game in which the sixth graders will get to play with Roger, Laurel, and other high school stars--and Warren won't have to play because of his broken arm. The arm heals, however, and Warren is headed for public humiliation; but somehow he hangs onto the crucial ball--breaking his arm all over again. ""Camp Hit-a-Homer is definitely out for this summer."" Still, with help from both Laurel and Roger, and all he's been through. . . maybe he'll get it together with the ball. Hokum, but largely inoffensive.