Part 5/9:

As their excitement quickly turns to despair, Liuki and Duo Duo are apprehended. Their grandfather, Han Jiang, tricks the jailer to secure their release, only to have another catastrophe unfold. At the same time, Earth approaches Jupiter to gain speed for its journey, but an unexpected fluctuation in Jupiter's gravity triggers catastrophic earthquakes. Underground cities collapse, and vast portions of the planet succumb to floods and lava.

With their underground haven in disarray, Liuki, Duo Duo, and their grandfather escape from captivity, navigating perilous conditions in Han Jiang's heavy vehicle. Unbeknownst to them, Peking is struggling against dire odds in outer space; the navigation AI Moss informs him of Earth’s deteriorating situation, declaring it beyond saving.