The zombie army recruits new members. Marroquín discovers that one of his men is a traitor, and a new danger hunts Lucas, who realizes that something strange is happening. Becerril gets closer to his human enemies.

A zombie is tormented by his human memories. A secret mission ends badly when the US Army Rangers face an enemy that seems to be bulletproof. Valencia must break an oath. Romeo is hunted by his own past, and Chainsaw uses his abilities to capture a monster.