Come experience shock and awe as the Cajun Pawn Stars take aim at a powerful WWII 50-caliber gun. Will the guys fire off an explosive offer or will they suddenly find themselves gun shy? Then, Jimmie and Tina are sent into orbit when someone brings in photos from Apollo 13's legendary splashdown and rescue in the Pacific Ocean. Will Jimmie shoot for the moon for these NASA pics or will the seller's ask be too far out of this world? And later, the shop stumbles upon a 1880s railroad lockbox thought stolen by notorious train robber and outlaw Eugene Bunch. Can Jimmie round up a posse in time to crack negotiations or will the hefty price tag have him reaching for the skies?