Stiffy comes up with a plan for Bertie to pretend to be a burglar, so that Stinker can impress Sir Watkyn by stopping him. Stiffy and Stinker sing about their love for each other ("Half A Moment"). Bertie, somewhat moved by their song, reluctantly agrees to help them by taking part in Stiffy's scheme. Bertie wears a pig mask (since no better mask was available among the props on hand) and uses a ladder to break into Totleigh Towers. He ends up climbing into the wrong room, and is chased by multiple characters through the house, since they think he is really a masked burglar ("It's A Pig!"). Before Stinker can make an appearance of apprehending Bertie, Cyrus tries to catch Bertie, and Stinker accidentally hits Cyrus, who is briefly knocked out. While chasing Bertie through Totleigh Towers, Gussie reunites with Madeline by coming to help her, and Bingo bonds with Honoria. Just as Bertie is about to be unmasked by Sir Watkyn, Bertie apologizes to Jeeves for doubting him and asks for his help. Jeeves switches Cyrus and Bertie's places. Bertie is saved and Cyrus is caught as the thief. Since Stinker apparently helped catch the thief, he gets Sir Watkyn's approval. Bertie, Bingo, and Gussie try to reintroduce themselves to Sir Watkyn, though he is still confused. Stinker escorts Cyrus away, and the happy couples depart. Jeeves has also prevented further trouble by acquiring Sir Watkyn's copy of "The Times" before Sir Watkyn could see the engagement announcement.