All Fall Down - S1.E25

An informant tells Ethaniel and Laura that Banning is producing a new drug that will cause humans to collapse and go into a deep sleep, at his command. As he is telling them about this drug some of Banning's men activate the drug and their informant collapses. Tawrens fights of their attackers as Ethaniel and Laura get their now unconscious informant away. The only clue they have to try and find out more is a small picture of the man who has created the drug, Laura's father!