James and Kate Fuller have been on their wedding trip, and after a year start home. They fall asleep in the waiting train. In a home in the city a baby arrives, to whom a little brother objects very much. He decides, to get rid of him and takes him to the railroad station. The boy sees James and Kate asleep in the train, lays the baby on Kate's lap, and is home and undressed before the baby is missed. He leaves the front door ajar to mislead the nurse. The loss is soon discovered. Papa Potter sees the door open and thinks the baby has been stolen. He calls up the police, who start a search. The train is on its way. Kate awakens, is puzzled and awakens James, showing him the baby. James pushes the baby away, showing his dislike for children. Kate is pained. Arriving at their destination, James tries to persuade Kate to leave the baby in the station, but she refuses. Soon after they arrive home, friends call. Fearing the friends will think that the baby is theirs, James hides it. All is well until the baby cries and the visitors look for an explanation. James pretends to go and see what the noise is; he quiets the baby with .sugar tied in a rag and tells the friends they heard a cat. More friends come in, surprising James and Kate. Fearing the guests will discover the child, James tries to get rid of it by leaving him on the porch of another house. He is seen and recognized by people passing, who return the baby to Kate just as she is about to pass wine to the guests. All is confusion and the guests crowd around Kate and baby, saying, "How much he looks like his daddy." James is annoyed, the guests drink to the health of James, Jr., but James refuses to drink with them. Next morning James sees headlines in the paper. "Mr. and Mrs. James Fuller Return Home From Honeymoon with James. Jr." James angrily hands Kate the paper. Kate reading, sees other headlines, "Boy Confesses. After Vain Search for Baby." Both are relieved. James telegraphs baby's father and soon receives a reply that he is coming on. The messenger boy has read papers also and boldly laughs at James and Kate. Friends come next evening on Kate's invitation to see the baby christened. James Potter, the baby's father, arrives. Guests are puzzled until James introduces him. After hearing how the guests thought the baby was James' and Kate's, Potter completes the joke by having the baby christened "James, Jr.," with James as godfather.