In Vol. 4 River returns with her crew, Space Wasp, Venom and a new adventure. In this story River meets her soul mate and marries. Then comes the invasion of the Nukpa and their controlling Primary Mind. This will be the fight of a life time for River and her ship and crew. But, even more unbelievable will be the reaction of the United Earth System, the Fargons and the Shadainians when faced with the overwhelming advance of the Nukpa invaders. Follow a war that ranges over a third of the Milky Way Galaxy with a large number of Galaxy Empires having been overrun by the Nukpa and now being a part of the invasion force. River will face the most difficult moment in her life and that will determine the out come of the war overall. No only is she dealing with the unknown, but she is dealing with the past. A past that must be seen before it can be believed. This is a challenge for everyone involved from the Chief Council of the United Earth System to the crew members of Space Wasp.