An anomaly in space has stopped in Earth's path in a way not accounted for by astronomical physics. Is it aliens? With only six days before inevitable contact, newly married teen spies Nicolas "Nico" Hall and Samuel "Sam" Solomon are enlisted to investigate—each young man sworn to secrecy even from the other. Nico is in the field looking for answers and tracking a mysterious Person of Interest. Sam is working first contact scenarios on the thirteenth floor of a Manhattan building that doesn't officially have a thirteenth floor. And they're both wondering if the rules of love change if it's the end of the world. As humanity slips into the grip of alien invasion panic, Nico and Sam realize they're going to have to work together to save the world—and their marriage.