Confused Coaches

S21, E18: Spencer and Gordon are very competitive. They argue about everything. Spencer boasts about being a private engine and Gordon boasts about pulling the express and they both insist that they are faster and better than the other. One day, Spencer is taking a special group of passengers to Callan Castle while Gordon is setting off to pull the express when they start to argue about which platform they should be on. But when Spencer insists on leaving from platform 1 and makes Gordon line up on platform 2 they are brought the wrong coaches. Nobody realises the mistake until the two engines are racing along the line and by the time they reach their destinations Spencer and Gordon have to contend with some very unhappy passengers.