A man (Henry) wakes up in the middle of an apocalyptic world, remembering nothing but his name. He encounters a group of survivors (Connie, Gideon, Julius, Dylan, and Noah) who are determined to make it to a safe haven known as New Denver. On the way to New Denver, the team discovers that Henry may not be the man he claims to be.

Brothers Blake and Brady are sent to Earth to see if it’s inhabitable after the war has now finally ended. But out of nowhere, their ship crashes. When Blake wakes up, he is on his own and lost. He must find his brother Brady before the horrors of what remains of Earth catches him first.