- In December 2022, biology teacher and former Green Beret, Dan Forester, fails to get a job at a prestigious research center. While he is watching the World Cup at a Christmas party, soldiers from the year 2051 arrive to warn that humanity is on the brink of extinction due to alien invaders: the Whitespikes. In response, members of the world's militaries are sent into the future, but fewer than 20% survive, prompting a world wide draft.
After a year of the draft and a growing anti-war movement, there is little hope for humanity's survival. Dan receives a notice that he has been drafted and reports with other draftees to basic training. Dan deduces with fellow draftee Charlie that in order to prevent a paradox, those drafted have already died before the war starts.
A family man is drafted to fight in a future war where the fate of humanity relies on his ability to confront the past.