The battle against the Evil Empire rages on as heroic men, women, and aliens of the Rebel Alliance continue their strugggle to end the Era of Daarkness. But a mysterious visitor comes to the Rebel fortress on Mount Yoda, bringing ominous news.

"Syd Chambers grew up on Earth with his human mother and barley remembered his alien father, who left on a mission when Syd was very young. Syd used to wonder if his father was still alive, waiting for him out there in the vastness. But he learned the truth on the planet Ashfall - his father had died protecting a devastating secret about the history between humans and Denzans. Syd is now faced with a choice - free humanity from imprisonment on Earth,...

Told from separate viewpoints, as evil forces from the parallel world invade their home, the Greystones, their doubles, and friends must return to the alternate dimension to save both worlds.