Whilst doing some kite flying with the other kids, Mandy is inspired to want to fly over Pontypandy Mountain. Hannah tells her that her dad, Joe Sparkes, has just the thing...which turns out to be a hot air balloon!

When Joe and Mike discover that Norman is entering Pontypandy's big go-kart race, The Pontypandy Cup, they get very nostalgic about the go-karts they made when they were kids.