Harry Mudd is back and he is not happy. Possessed with a device that lets him repeat the same thirty minute loop infinitely, he is trying to figure out how to capture Discovery and sell it to the Klingons. Due to his genetic engineering to operate the spore drive, only Stamets remembers events from one loop to the next. Can he convince the crew to listen to him and formualte a plan to stop Mudd, all in less than thirty minutes?