Topsy Turvy: Big Band is the ninth episode of Chuggington: Meet Thomas, Trainees!'s seventh season. It revolves around Thomas, the trainees and chuggers (with Vee and the humans) celebrating Eddie's job at Chuggington!
Eddie has been repairman at Chuggington for 18 years. He needs something to congratulate his work. Thomas thinks a suprise party and the theme should be "Topsy Turvy". However, Koko, Wilson and Brewster with Hodge, Zephie, RJ and Fixer have already heard his plan. They tell Thomas that during the party they should put on a show. Thomas agrees with this.
Next day, they tell Vee, Morgan, Lori, Dr. Ling, Karen, Riko, Echo, Danny and Austin about their plan. They all agree. That night, Eddie returns from the repair shed. The lights go on, and everyone shouts, "Suprise!" Vee explains that after every year of service, they wanted to congratulate his work. Then Thomas, Brewster, Wilson, Koko, Hodge, Zephie, RJ and Fixer jump out of all tunnels and sing the final lyrics of Topsy Turvy:
Trainees and Chuggers: Once a year we throw a party here in town
Thomas: Hail to the king!
Humans, Trainees and Chuggers: Once a year we turn all Chuggington upside down
Thomas: Oh, what a king!
Trainees and Humans: Once a year, the greatest will wear a crown
Thomas: Girls, give a kiss!
Trainees, Chuggers and Humans: Once a year on Topsy Turvy Day
Thomas: We've never had a king like this
Thomas, Trainees, Chuggers and Humans: And it's the day we do the things that we deplore
On the other 3-6-4
Once a year we love to drop in
Where the beer is never stoppin'
For the chance to pop some popinjay
And we picked a king who put the "top" in Topsy Turvy Day!
Mad and crazy, upsy-daisy, Topsy Turvy Day!
Eddie thanks them all for the party. So now, this party is a treasure only found in memory boxes and minds.