When a long hot summer dries up Kangaroo Creek, nobody in the valley has any fresh water. Mr Lizard tells the gang a story about the time the valley was hit by a “groundshaker”, which changed the valley forever. With only a small supply of drinking water and no rain in sight, the gang start to consider leaving Kangaroo Creek to find a new home with a water supply. They discover something that shows relief may be closer than they thought. Can the gang find a solution without having to leave their home forever?