Greatest Show On The New Frontier. The Star Sheriffs oversee the completion of a new outpost on Yuma, while a traveling circus performs in close proximity to the post. Saber makes the acquaintance of the trapeze artist Lila. Saber and Fireball find the whole thing unsettling, why the circus is visiting a base of all places just to give a single performance. In fact, the director, Mr. Big Top, is up to no good...