Planetary Misalignment - Space Expansion

A war between two alien civilizations, the Vascotians and the Pallors, that closely resemble one another have been at war for more than a century. The war began over a missing prince and a missing queen. Captain Striglin's final move in the battle sends his ship, the Deriscus and his crew through a black hole where they crash against a large asteroid headed straight for Earth. The Deriscus, now stuck in the Milky Way Galaxy, encounters other alien species that seem to be intent on destroying the solar system before the Milky Way's own alignment can destroy the galaxy first. Can Striglin protect Earth, find the prince and the queen so the war will finally come to an end and repair his damaged reputation or will the Deriscus and the crew be permanently stuck in the Milky Way Galaxy?