Sharon's Amazon Digital Video Library
Los Angeles SWAT cop Jack Traven is up against bomb expert Howard Payne, who's after major ransom money. First it's a rigged elevator in a very tall building. Then it's a rigged bus--if it slows, it will blow, bad enough any day, but a nightmare in LA traffic. And that's still not the end.
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.