In a world where fear is constant, danger is real, and safety is a lie, Tesha runs from the Lost. Nearly a decade ago, scientists created the Immorta serum, their 'Project Immorta'. But when tested, the serum was a failure. Years later, most of the population had been infected by the serum. With the world falling to shambles, the few people who survive have fled to the furthest corners of the earth. There Tesha was raised in constant fear, until one day, they were tracked down by the Lost. Now, Tesha and her friends, Deirdre, Phoebe, Lucas, Cole, Diggory, Kaia, and Natara, must find a cure and save the world. And they must finish before the Lost find them again.