- Casey immediately has problems with his mom. She starts going out on dates and meeting up with strange men.
- Dawson's brother Antonio is shot in front of her as he begins to unravel the newest drug dealer that have come to Chicago.
- Kelly's ex-fiance Eric Whaley takes up a few shifts at Station 51, and he still holds a grudge against Kelly for calling off the wedding. Shay later tells Eric that Renee had cheated on Kelly, and that's why he called off the wedding.
- Hermann, Otis, and Dawson buy a bar together.
- Mills and Casey realize that Dawson has a thing for both of them.