Thomas and his friends learn an important lesson: rules are made to keep them safe.

As Thomas and James head out to work on a rainy day, Sir Topham Hatt reminds them about an important rule: go slowly in bad weather. James thinks he can ignore the rule and go fast, but he soon learns what can go wrong if he doesn't follow the rule. This colorful story book reminds children ages 4 to 6 that rules are made to keep them safe.