They entered the cave, and Sarah got stuck when she entered a narrow cave, and then the cave collapsed, blocking the circulation. They had to move on, and Juno confessed that this was not a group of Brigham caves, but a new cave with 20 photos of dark invasion that no one had found. They walked on, only to find that animal bones were everywhere, and strange sounds could be heard in the distance. Holly accidentally broke her leg while looking for an exit. She was picked up by everyone and moved on. At this time, those ancient humanoid monsters hiding in the cave appeared, and they broke Holly's head at once. In the screams, the other five people fled in a hurry. Juno is very brave. She fought those monsters. Later, Beth came back to help Juno, but she accidentally hurt her companion Beth because of excessive mental stress. She ignored Beth who was stabbed in the neck, but continued to look for the team. Juno found Rebecca and Sam. In fact, they could have escaped because Juno found signs of the cave extending outward. However, Juno insisted on finding Sarah before leaving. Sarah found Beth dying in the cave. Beth told Sarah before she died that Juno was having an affair with Paul, and she was killed by Juno herself. The combination of new hatred and old hatred made Sarah very angry. Later, Sarah found Juno, but Rebecca and Sam were killed by those monsters. When Sarah and Juno were fighting with the monster, Sarah stabbed Juno's leg, and Sarah left Juno to the other monsters. And she herself fell into the pit in a panic.