He got the name Disco Bob based on the fact that he took the easiest beat ... Thanks to Voight (Jason Beghe) stepping in and lying for Bob, saying he was undercover on an assignment, Bob was able to ...

Chicago P.D. returns after a one-week hiatus ... (Annabelle Toomy), and then gets an unexpected visit from his father, Disco Bob (Jack Coleman), who comes to deliver surprising news.