In 1979, a plant malfunction causes confusion and a radiation leak. As fear spreads, so does suspicion that the authorities are concealing the truth.

Panic strikes the community as a full-blown catastrophe looms. Locals mobilize to confront the authorities and protest the nuclear power industry.

During cleanup at the plant, insiders claim that cost-cutting measures and intimidation tactics create a danger far worse than the accident itself.

Despite disturbing revelations of wrongdoing at Three Mile Island before and after the accident, the utility fights to bring the plant back online.