Doc Mack is the owner and proprietor of Galloping Ghost, the world's largest video game arcade -- a place so massive it generates 19 separate electric bills. Lisa gets a private tour of the gallery's many vintage treasures and rarities, learning the meaning - and value - of "shmup" (shoot-'em-up) games like Turkey Shooter and Blaster. She also checks out the ultra-rare Primal Rage 2, which never made it to market, and gets a privileged look at the Sega R 360, an actual flight-simulator module where the player is spun, flipped, and rolled while engaging in game-play -- Doc's being the only one available to the public anywhere in the world. Doc's friend and colleague, Zespy, a video game aficionado and owner of his own arcade, is on hand to set a price on Doc's unparalleled collection -- then to try to tempt him into a trade. Will he hit on something Doc actually doesn't yet have? And what will he ask for in return?