Clark pending the investigation into his questionable shooting, finds himself stripped of his gun and badge and placed on restricted duty. He learns that his father saw Angie and is not happy about it. While Owen and the others investigate a homicide, Owen has Clark look at his cold case which goes back to 9/11. Clark thinks it's drug related so he goes to his father to see if he can give him any help. When he sees him, his father asks a favor which Clark is not willing to do. He later gives Clark a lead which they run with, but when something happens to Arroyo's personal life, he wants the collar because he needs the promotion.