Fred's mother-in-law writes a letter saying that she is staying with her favorite son-in-law and his wife, and would be coming to seeing them next week. Fred then attempts to fix up an old house for his mother-in-law and move it into his backyard.

Fred and Barney are on jury duty and the jury convicts "The Mangler" of robbery. After his conviction, The Mangler vows to get even with the foreman of the jury, Fred. The convict escapes from prison the very next day and Fred fears that The Mangler is going to get him.