Kipo and the Age of Wonderbeasts (season 2)

On the planet Earth there was a catastrophe in consequence of which the whole world sank into chaos and serenity. How now to get the means for survival and where to find a new home for the surviving creatures? People understand that the way to space is closed to them and is not achievable. Then they start looking for a different way to survive. Oh, miracle! Humanity discovers a hidden place in the depths of the earth where large-scale construction is planned.