When the remains of Jack the Rippers first five victims turn up in a Louisiana swamp, an English detective and a local sheriff join forces to unravel the Rippers true identity...only to find themselves caught up in a modern day conspiracy.
Two ships, carrying scientists from different generations, arrive on the first habitable exoplanet. The discovery of a now-extinct, ancient race thrusts them together on a mission that, if they fail, will mean the destruction of Earth and Salacia.