When Chechen terrorists manage to smuggle a Cold War-era Russian nuke across the Mexican-American border, the President is forced to reactivate the only unit capable of stopping them: Navy SEAL sniper Gil Shannon and his brash team of SEALs and Delta Force fighters. Gil and his team, many of whom had gone rogue, are reunited as an off-the-books Special Ops unit that must race against the clock to save the country from nuclear destruction.