Ish, a solitary young geologist, barely survives a snake bite. After a coma, he drives to the nearest town only to find dead bodies. He searches for survivors, from San Francisco to Las Vegas. There must be someone else left...

Ish finds a survivor, Emma. There's a spark. Is it real, or are they just the last two people on earth? Nature is unrelenting. Rats plague San Lupo. Ish dreams of rebuilding civilization, but can they even survive extinction?