Jessica, Jeff and Billy are taking a ride out into the countryside, where they spot a black U.F.O. travelling in the sky above them. Jeff and Billy look for help while Jessica becomes Spider-Woman to save a country house and its inhabitants from the black rays of the U.F.O. After saving the people in the house, Jessica, Jeff and Billy travel to the Hawk Peak Observatory to talk to Professor Jansen to try and find out where the spaceship came from. They discover that the spaceship and many others came from the centre of a black hole. Spider-Woman attempts to stop the spaceship from covering New York with their black rays but is unable to do anything from outside the ship. She secretly boards the ship and discovers that the leader of the black hole aliens is called Graviton. Graviton intends to cover the whole Earth with their black hole rays in order to make it suitable for invasion. Spider-Woman has to figure out a way to defeat Graviton and stop his evil plan.