After being discharged from the 372nd infantry, on account of a bean shortage, smithy seeks employment. He finds employment at a construction site, where he helps to build a house, and soon causes havoc amoungst other workers. The constuction company owner leaves for a week, and tells his secretary to send a letter to Mr. Smith telling him to complete the construction of the house while he (the owner) is away. The letter is accidently sent to Smithy who manages to complete the house. When the owner returns the house is complete, and Smithy is commended until the last support beam is removed...