Nick awakens in a heroin den in an abandoned church and finds his friend Gloria eating one of the bloodied corpses. While fleeing, he is hit by a car and hospitalized. Nick's doctor tells Madison and Travis that Nick's claims about the incident are heroin hallucinations. With his ex-wife Liza's aid, Travis tries to mend things with his rebellious son, Christopher, and Travis believes Nick after visiting the church. Alicia becomes more worried about Nick's chemical dependency. At school, Madison confiscates her counselee Tobias' knife, and he warns her about a mysterious epidemic. The next day, school closes early in response to the news video of a violent man who had been scathed by police bullets; Travis and Madison had been caught in that the traffic-jammed scene the previous night. Nick escapes from the hospital and meets with Calvin, hoping to learn if the drugs Calvin sold him caused him to hallucinate in the church. Calvin drives Nick to the riverfront, where Calvin plans to kill him in order to prevent Nick from exposing Calvin as a drug dealer. In the ensuing struggle, Calvin is mortally shot. After Travis and Madison arrive, the zombified Calvin attacks them. Nick runs over Calvin repeatedly with Travis' truck, and the three watch in disbelief as the mutilated Calvin is still able to turn his head towards them.