On the road, Jep and Amy met up with Betsy, who was re-leading the Animal Legion. Bobby also led Air King's partners to find the tank and met them. The tank cleared the obstacles for Jep's car, and everyone drove smoothly.Arrive at Yellowstone Park.

Before heading to Yellowstone Park, Betsy asked the tiger to lead the animal army to surround the last humans, intending to catch them all. In the car, Betsy handed the tape to Gus, and recognized Wendy at a glance as his sister who had been separated since childhood., but she didn’t dare to recognize him.

Everyone who came to Yellowstone Park began to rush in and out for this home, and Gus finally listened to the contents of the tape. It turned out that the message recorded in it was the message Miller left for Pa, saying that he planned to go to Alaska to find a way to save the world.method, and the less she went to find them, the safer they would be.

Betsy had been communicating with the tiger, but the animal army was defeated by the last human. Abbott even learned from their communication that Betsy and others were now in Yellowstone Park. After the entire army was wiped out, the tiger desperately came to Qi on a motorcycle.Arrive at Yellowstone Park and tell Jep they run away because the last humans are coming.