Twenty-three bodies are found beheaded on the U.S./Mexico border, each marked with the signature of an assassin called Chuparosa. Detective Cecilia Garza of Mexico has been pursuing him for years yet knows little, except that he₂s heading to New York. Jeremy Fisk can't let grief keep him from his duty to safeguard the city. Complicating matters is the arrival of the beautiful and assertive Cecilia. To have a chance at finding Chuparosa, these uneasy allies must learn to work together and fast.