Jeffrey Sinclair, ambassador to the alien world of Minbar, former Babylon 5 Commander, is one of the first to learn the truth about the Shadows, the ancient race pursuing the destruction of the galaxy. Sinclair also discovers a startling secret: he is the linchpin in the plan to stop them. Now, Sinclair is asked to revive the legendary Minbar warrior group, the Rangers. Catherine Sakai, commercial pilot and planetary surveyor, has lost her heart to…