Earth Riddle

Wang Dong, who was in a mid-life crisis, accidentally participated in a secret national experiment. Traveling to the earth thousands of years ago, a magnificent world unfolds. In the process of fighting wits and courage with the enemy of his life, he discovered the secret of the universe. Human ancestors were just interstellar war criminals exiled by advanced civilizations, and the earth was just a huge cage. Let's see how humans can save themselves.