AglobalsteelworkscompanypartnerswithanaerospacefirmtominetheMoon.However,whenadrillingaccidentcausesagiantpieceoftheMoontocrackoffandhurtletowardsEarth,thesurvivingspaceteamandtheheadofthefirmmustfigureouthowtodestroythemeteoroidbeforeitwipesouttheentireplanetaaa