Three years ago, a global virus broke out, and the source was officially covered up. The only insider was the silent military scientist Li Jin. He sealed the genetic map of the virus with his own hands, but was pressed hard by his former comrade Shang Ji in the apocalyptic wasteland. When the live broadcast camera focused on the underground laboratory, tens of millions of viewers witnessed the truth - Li Jin was not the savior, but the final key. Shang Ji held the detonator and asked with a smile: "You have been hiding for three years, what are you afraid of?" But Li Jin just caressed the virus sample and whispered: "I was afraid that you would wake up too early."