Motherless Alex D. Linz moves to Cocoa Beach with his father. Because his name is Wilhelm von Huber II, and daddy is James Woods with a German accent standing in for Werner von Braun, he's bullied by his classmates as a Nazi. Woods doesn't have a clue as to what he does, but Annabeth Gish, in charge of the chimpanzees who are being trained for the first Mercury launch notices the boy has an emotional connection with one of the chimps, and appoints him an official trainer.
It's actually a nice little child's-eye view of the beginning of the Space Race. It has a bit of politics, a bit of industrial espionage, and a decent, if light view of the goings on in the era, like a YA version of THE RIGHT STUFF. Plus a chimpanzee, of course. With William Devane, William Atherton, and Barry Corbin.