Jeff, Jodie, Sam and Muffy are planning a special ""bon voyage"" party for Mrs. P, who is going on a cruise. But when they are trying to plan the party, Muffy keeps being late and everyone gets annoyed with her, even Mort, who was invited to the party. But when she's late for the final meeting, it's because while taking a shortcut through the walls, a pipe broke and fell on her. So after they find her, Mort muct climb through the wall and get her out.