Slingshot

A threat is coming to destroy civilization ...In a way nobody had ever imagined in their worst nightmares ...And it's human-designed.

Joey Hawke's life is turned upside down when a future version of himself drags him into a bathroom stall. Together, they have seventy-two hours to save humanity. And they have to do it against the biggest, most bizarre con the world has ever seen. Failure means the poisonous destruction of every city in the world.

But Joey and his future self fail, and things rapidly descend into an unstoppable extinction-level event. Only he holds the key to saving billions of lives by turning back the clock ... if he knew how.