Reed Futrell is an engineer at a uranium-enrichment plant in heartland America. His father worked at the very same plant before him. Despite his father's death in a tragic accident at the atomic plant years ago, Reed stays on, proud to perform demanding and dangerous work for the benefit of the nation. As for the radioactive 'incidents' he has endured, Reed prefers to think about other things, such as Hubble photographs of distant galaxies, Albert Einstein, his dog. Reed's casual attitude toward danger infuriates his on-again-off-again girlfriend, Julia, a biologist. Julia is truly Reed's match. Both are witty, curious, and fascinated by science. But when deformed frogs are discovered and news reports reveal evidence of radioactive pollution surrounding the plant, Reed and Julia face an unprecedented challenge.