A sudden green fog disaster swept across the world, and the city was instantly plunged into despair. Environmental scientist Amelia and brave firefighter David and others meet in this doomsday crisis. While they fought fiercely with mutated creatures, they explored the truth behind the green mist. Shrouded in the conspiracy of multinational corporations, they went through many difficulties and worked hard to find a solution to the green mist disaster, embarking on a thrilling journey of doomsday redemption. As the research deepens and the battle continues, they gradually discover that this disaster is closely related to human destruction of the environment, and every choice they make is related to the future of mankind and the fate of the earth.