A satellite sent up by the US starts to act strangely and it is bought back to Earth in a team led by Dr Nelson (Peter Graves). Meanwhile, his friend Dr Anderson (Lee Van Cleef) is acting strangely and seems to be talking to... someone. That someone turns out to be a being from another world and it intends to take control of the Earth... by sending space bats to attack the local sheriff and mayor and putting them under his control...
But just wait until you see the jiggly rubber suit horror that is the alien! This is a fun film and is very familiar with all the common tropes like small town settings (very budget friendly), ridiculous aliens and nefarious plots to conquer mankind but foiled by men in open-top Cadillacs. The film is ridiculous but very watchable.