Uncle Andy reunites with his old air corps buddy Colonel Mustard, who invites Andy and any friends of his choosing to a party at his secluded mansion. Bringing Steven and the Gems with him, Andy is surprised when they’re all given strange gifts at the door. After humiliating Andy with some embarrassing stories, he colonel proudly shows off his collection of Gem shards, infuriating the Crystal Gems. But when the lights go out and come back on, Mustard has been knocked out and the shards are missing – leaving everyone to suspect that one of them is to blame. Was it Andy with a wrench, Steven with a paperweight, Amethyst with a roast turkey, Garnet with a lead pipe or Pearl with the candlestick?