Thatcher and Kane raid the house of a heroin dealer, after several addicts die from a bad batch. Thatcher is determined to catch the supplier, and once again, he goes too far when arresting a suspect, who turns out to be Alan Best, Best's father, who is working as a police informant for Gold. Murphy tells Taviner that she is going to leave her husband for him, but Taviner has other matters on his mind when Hollis warns him that Johnson is closer than ever to the truth about the Sun Hill fire, and at a memorial ceremony for the officers who died, Taviner is too overcome with guilt to make a speech. Determined to be honest with Murphy, Taviner admits he framed Jeff Simpson for the fire.