Third movie, same exact story. No explanation as to how they got here, whether they are soldiers of an alien attack, or just alien monsters. No explanation as to how they survived the space trip, in ships, or on the surface of the meteorite, and if on the surface, how they were not destroyed entering the earths atmosphere or how they survived impacting with the surface of the earth, which would be at an excess of from 11 km/sec to 72 km/sec (25,000 mph to 160,000 mph or 40,000 km/h to 257,000 km/h).They also traveled thru space, with no oxygen, even though they drown in water. Alot of the story is missing. Lazy writing.