Linda and Bob are going on the Wine Train where adults get to swill reds and whites and enjoy a buffet, chocolate fountain and more. Kids are allowed but not welcome; Bob and Linda bring them anyway. The porter, Ethan, locks Tina, Gene and Louise in the Juice Caboose, where they meet up with Louise's Field Trip Buddy, Regular Sized Rudy. When the elder Belchers meet Rick, the wine enthusiast, Linda welcomes him with open glass. Louise has a fixation... Louise Must Get Chocolate! Meanwhile, Bob becomes indignant with Rick's wine snobbery and suddenly, there is a birthday and a Wine-Off. Jambo!
—LA-Lawyer