In New York City in the days following the events of 9/11, Monty Brogan is a convicted drug dealer about to start a seven-year prison sentence, and his final hours of freedom are devoted to hanging out with his closest buddies and trying to prepare his girlfriend for his extended absence.
On July 2, a giant alien mothership enters orbit around Earth and deploys several dozen saucer-shaped ‘destroyer’ spacecraft that quickly lay waste to major cities around the planet. On July 3, the United States conducts a coordinated counterattack that fails. On July 4, a plan is devised to gain access to the interior of the alien mothership in space, in order to plant a nuclear missile.