July 4, 2016, 20 years after the 1996 alien invasion of Earth. While a ceremony was being held to celebrate humanity's victory, an alien mother ship so large that it covered the moon once again attacked the Earth's atmosphere. The moon base that had been built as a space defense line for mankind was destroyed in an instant, and several defense satellite systems in earth orbit were also easily destroyed. A mysterious sphere approached the moon just before the alien mother ship attacked and was destroyed by order of the President of the United States. When David and Jake investigate the wreckage and discover what appears to be its core, the research team's moon tag is captured in the barrier of the alien mothership. The design of this moontag, which plays an active role in this film, is excellent.