Opie placed an ad in the paper asking for a job. Andy explains to his friends that he's saving for an electric guitar.
When Andy goes to the drugstore, Mr. Crawford told Andy he lost his hired hand who worked the diner. So Andy recommends Opie for the job because he's reliable & trustworthy.
Three weeks into the job, Opie has saved $70. Mr. Crawford was impressed with Opie that he wanted him to run the store for awhile while doing some errands. Andy comes in & wants to order some perfume for his girlfriend. Opie looks up a price for the perfume he wanted & it was $64. After Andy left the store, Opie puts the perfume back & then the bottle shatters!
Opie tells Arnold what had happened. Arnold gives him the idea of buying another bottle of perfume since he's going out of town with his dad. Opie pays Arnold the $64.
When Arnold brought him the perfume, Opie places it in the shelf. Andy enters & tells Mr. Crawford that he wants to buy that $64 perfume. Mr. Crawford tells Andy that bottle contains colored water. Opie realizes that he broke a fake bottle.
After Andy left, Opie confessed what happened to Mr. Crawford. He thought it was responsible, but should've told him in the first place. Opie feeling sorry for what had happened, Mr. Crawford accidentally breaks a medicine bottle & tells Opie to clean it up & that all's forgiven.