The appearance of a mysterious old man allowed George to start a new adventurous trip to the past by opening the ancient book. This time, George, Brenda and Jack were sent back to the Palaeolithic Age. Three of them fell into a mysterious jungle where Water Lord had been waiting for them. They met two primitive humans, Ada and Adams, and inadvertently caught in a fiery argument caused by a grudge between the two tribes. In the dispute between Red Master and Grey Master, the two Wise Elders of the tribe, there lurked a big crisis. Everything started from fire and must end with it too.