The Celestial Secret Emerges

During the Wu Zhou era of the Tang Dynasty, Yuan Tiangang was ordered to secretly investigate a falling heavenly fire—and he quietly hid the survivor of an alien spacecraft. More than a thousand years later, an oil drilling crew accidentally drills into the spacecraft buried underground, triggering a serious disaster. The protagonist, Su Xiaotian, unexpectedly obtains a fragment of the ship and also leaves the drilling crew because of the accident. A chance collision at an airport activates the fragment he carries, setting off a UFO incident. The alien fragment leaves a mysterious symbol on Su Xiaotian's body. To uncover the secret of the symbol, Su Xiaotian, the heroine Guo Weiwei, and historian Professor Xue travel deep into the Qinling Mountains to investigate the truth.