Bringing to light real images recorded during the greatest undercover operation in an animal experimentation laboratory in the world, Carlota Saorsa, now a protected witness, sacrifices everything and puts her life on the line to show the world the harsh reality she experienced for 18 months inside what she calls "The Bunker."

Widow Paramo has lost her husband in the plague. Their daughter Dolores is considering suicide with El Muerto preparing himself to welcome her into the darkness. Paramo must triumph over Death in the boxing ring if she wishes to save both her husband and daughter.