Everybody in Bobville is interested in bathrooms. Choo Choo Bob, Conductor Dave, Charlie Rat and Randy the Planner sing a song about washing hands. Engineer Emily gives Bob a tour of the bathrooms on a train, and Richard W. Kornbelt gets a new job: plumber.
Choo Choo Bob wants to know more about steam. Luckily, Richard W. Kornbelt just got a new job in the plumbing business. Conducto Engineer Paul takes Bob for a ride on a great steam train, the Milwaukee Road 261.
Choo Choo Bob has a new gas station for his train layout. Richard W. Kornbelt has a new job as a model train salesman. Engineer Paul takes Bob for a ride on the Lake Harriet Trolley.
Choo Choo Bob and his friends hang out at the Bobville Clubhouse, and explore the world of trains.