After receiving James' invitation, Grayson travels to Paris full of hope. At the hotel, he meets the other team members: Arya McDonald, Mark Wilson and Tom Brown. After everyone has gathered, there is a brief argument over supplies, but it is resolved with Grayson's help. Then they take a car to the mountains of Spain, where there are problems with the car and the road. Faced with difficulties, the team members show different attitudes and choices. This reveals the complexity of human nature. They follow a clue to a mysterious cave. The cave is dangerous. A huge black flying insect attacks them. Then they encounter a fierce bear. In the fight with the bear, Mark's device falls into a puddle. The team is in trouble. But they overcome the crisis with the bear and find their device. They also continue deeper into the cave. They discover mysterious ruins in the cave with strange symbols, engravings and fossils. But there are also dangers here. They encounter a small monster, a swarm of black flies and a huge blue creature. The team members were injured, but they stuck together and persevered. They found a glowing sphere in a room in the ruins. The sphere healed Tom and provided Grayson with information about the history of the ruins. Knowing it was important, they decided to venture deeper into the core. There, they found a stone door with strange symbols and statues on either side. After some fighting and exploring, they cracked the code and entered the dark space behind the stone door.