"Bea's five-year-old daughter, Agnes, is slowly wasting away, consumed by the smog and pollution of the overdeveloped metropolis that most of the population now calls home. If they stay in the city, Agnes will die. There is only one alternative: the Wilderness State, the last swath of untouched, protected land, where people have always been forbidden. Bea, Agnes, and eighteen others volunteer to live in the Wilderness State, guinea pigs in an experiment...

So far the AstroNuts have failed to find a suitable planet, but NNASA has come up with a new plan: send the four animal astronauts back through time on Earth where they are to contact early homo sapiens and somehow set them on a path to a sustainable future--trouble is, humans seem inferior to many of the other species (especially the wolves), so the AstroNuts come up with a Survival of the Fittest Olympics, hoping that with a little help the humans...