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One of the biggest box-office hits of all time delivers the ultimate encounter when mysterious and powerful aliens launch an invasion against the human race. The spectacle begins when massive spaceships appear in Earths skies. But wonder turns to terror as the ships blast destructive beams of fire down on cities all over the planet. Now a determined band of survivors must unite for one last strike against the invaders before their fate - and that of all mankind - is sealed forever!