After Abner discovered that Lum has received some diamonds in the mail, he became very anxious to join Lum in his new, but still undisclosed, business venture. He finally succeeded in getting a job, and the old fellows now have an amicable if strained working agreement. Part of the day, Lum works for Abner as his delivery boy, and the remainder of time, Abner serves as Lum's office boy...