Saxon and Carter reduce the pressure in their spacesuits, in order to squeeze into the airlock. The Space Force blasts off, just as the alien ship accelerates for Alpha Centauri. Chipper hears Jenny’s voice, trying to persuade him to return to the alien ship. Space Force is hit by some sort of beam from the alien ship and loses power. The crew are knocked unconscious. On recovery, the crew find Space Force tumbling out of control in space, with no sign of Jupiter on the televiewer. The crew receive a response to their radio messages from Jenny, but this Jenny is a radio operator for an airbus service on Earth. The crew are put in touch with Control, who inform them they are only around half a million miles from Earth. It seems the alien beam which hit their ship accelerated it towards Earth at enormous speed
