Esgal is a time traveling scientist from the far future conducting research throughout history in hopes of bringing life back to a dead Earth. In 1349 Esgal traveled through Europe to research the bubonic plague, contracting the disease and barely escaping with his life. He returns home to Asaph Space Station scarred physically by the plague and psychologically from mass hysteria and violence. He then joins a rogue group of scientists who attempt to make targeted changes to history to prevent Earth from dying. 1000 years later he finds himself back on European soil during another plague event that is just as chaotic and deadly as the infamous Black Death.