Delivery boy Jiang Ran was publicly humiliated as a loser at a wealthy family's banquet. He turned around and showed his nuclear weapons authorization letter, causing the whole place to explode. He is not a madman, but the forgotten holder of the Doomsday Key. Military intelligence analyst Shen Tang traces the truth, only to find that he is actually a witness that he sealed seven years ago; black market arms dealer Lin Xiao wants to seize power and destroy the world, and catering giant Zhou Zhendong is weaving a plan to destroy the world with a banquet for powerful people. The little girl who delivers flowers on the window sill is the only one who can understand the whisper of nuclear bombs. When the city falls into nuclear terror, Jiang Ran must transform from a trampled ant into a person who ignites or extinguishes the human fire.
