>>13Frizzle explains that while Arnold griped, he never actually refused to go on a field trip, nor did he ever actually say that he didn't want to take part in the field trips. The case is made that some kids and adults are afraid to let go of their preconceived ideas of what is exciting or interesting, and that ignorance and fear can be a driving force behind their decisions. Arnold was actually just afraid of having his world view challenged and that's why he showed apprehension involving field trips.
Frizzle takes DA and Ralphie to a different point in time showing the long hours she spent planning a field trip and how the field trips were never a whimsical outing for her, they came from a tremendous amount of work and dedication to what she did.
Frizzle explains that while DA has the wrong idea about going about planning field trips for her students and getting them excited in the topics she was teaching, her heart was in the right place and offers to help DA plan a field trip to take her students on, and then help her execute said field trip.
Ralphie mentions that he wants his son to join them if they go on a field trip. Ralphie explains that his soon has been completely uninterested in school and has been getting into serious trouble with a strong rebellious streak. As they head back to the present, Frizzle and DA agree to help Ralphie by taking his son along.
The next day DA meets up with Frizzle and begins to learn how to go about running things related to a field trip. Frizzle teaches DA how to operate different tools that were seen in the original show. Ralphie stops to visit and appears in a mechanic's uniform. He explains that he is working multiple jobs, one job being a mechanic and gives Frizzle a voucher he had never used for a free automobile rebuild from an accident. He also explains that he doesn’t want Frizzle taking anyone on the Bus in the state it is currently in, and that he will be an instrumental part of the rebuild.
Frizzle and DA take the bus to be repaired and stop at a vaguely familiar junkyard and garage that happens to be the same from the episode 202 "Flexes Its Muscles." A much older RU Humerous and Ralphie come out and it is explained that Ralphie has been working multiple jobs so he can afford to own his very own automotive shop. RU explains that he is retiring and selling his garage to Ralphie, who has been slowly taking over management of the garage.