Samuel explains that Muffin is too small. But when Samuel is called away, Muffin rides the scooter anyway and crashes it. Samuel is furious. Mr and Mrs Lovebird must teach the kids the importance of forgiving and forgetting.

Samuel and Rudy are going to race each other in a seedbox derby! But as the race nears, the two best friends become increasingly competitive. In an unlikely turn of events, Muffin wins the race.

Elliot gets stuck aboard a runaway Muffin Express! Though Samuel and Rudy attempt to rescue him, it is Muffin who finally saves Elliot and stops the runaway train.