Bill explains the different time zones on Earth and how they're set up. He also explains why time zones exist and includes a reference to the International Date Line.
Yakko Warner sings a song that explains time and time zones. He introduces the International Date Line and illustrates the idea through real-world examples.
Beakman explains how they make underwater tunnels using a fish tank with gravel in the bottom. He then puts a hamster tunnel in it to show how the hamster could get from one side to the other without getting wet. They then show a clip of how the Chunnel was made between England and France.