Near a station, a man is selling balloons with funny faces. Suddenly, a gust of wind blows them all away. One falls onto Ben who manages to blow it away using his funnel. The balloon rises into the air and ends up in a tunnel.
The balloon seller is very sad, but Thomas has an idea. Soon, all the engines give chase to the balloons floating around the yard. The drivers and firemen reach out to grab the balloons as a sort of chase.
With just one more balloon to catch, the engines all watch as it falls onto the railway line and grumpy Diesel runs over it, giving himself quite a fright.
- Thomas (does not speak)
- Ben (does not speak)
- Diesel (does not speak)
- The Balloon Seller (does not speak)
- James (cameo)
- Sir Topham Hatt (cameo)