After a sudden attack leaves Emperor Palpatine badly injured, Darth Vader must find a way to save him and protect the young Empire. To do this, Vader travels to a secret, hidden Jedi prison that was kept secret even from the Council. He decides to free the dangerous prisoners trapped there, but only if they agree to fight for him. The story is told through the eyes of a young Imperial officer who watches as Vader uses brutal strength and clever tricks to defeat his enemies. It is an exciting adventure that shows how far Darth Vader will go to keep order in the galaxy.