A secret government-built time machine becomes the target of the renegade scientist Dr. T, but fortunately Jessica is on hand to become Spider-Woman and stops his evil plan. However, Dr. T manages to steal the plans to the time machine and eventually builds one of his own, to steal precious items from the past. He then travels a thousand years into the future and having found powerful warriors there, brings them back to the present to help him take over the world. Spider-Woman has to defeat the future warriors and return them to their own time, before hers runs out.