For nineteen-year-old Jay, the fall should be about school, boys and weekends at the lake. Yet, after a seemingly innocent sexual encounter she suddenly finds herself plagued by nightmarish visions; she can't shake the sensation that someone, or something, is following her. As the threat closes in, Jay and her friends must somehow escape the horrors that are only a few steps behind.

A post-apocalyptic saga spanning multiple timelines, this limited drama series tells the stories of survivors of the devastating flu as they attempt to rebuild and reimagine the world anew while holding on to the best of what's been lost.