Boden tells Severide to tell his father not to come back, but he does so anyway. Tensions arise between the senior Severide and Boden regarding the death of Henry Mills. Severide reconnects with his father, Benny Severide, who comes to visit Firehouse 51 as he served there with Henry Mills and Chief Boden. Even though the injury is exaggerated at the beginning, he's released quickly and is back on Squad in no time. He eventually turns to Dawson for help and books an appointment with the doctor and Shay moves back in. After she's in an accident, he asks her to come back, but she refuses as he's still taking the medication. She gets very frustrated at him and moves out of their apartment.

Shay eventually helps him out by providing a false sample for testing. He tries to delay the test but is unable to do so. He keeps taking them until a drug test is ordered on all the firefighters after a case they work on. He turns to an old girlfriend instead, who gets him much stronger and illegal medication. Eventually, the pain worsens and he asks for more, but she tells him to stop being stubborn and get the surgery. Shay, his best friend and roommate helps him when he asks for stronger painkillers by taking them from the ambulance.

He ignores the instructions, the doctor warning him the pain and injury will worsen, but he refuses to have surgery. He makes an appointment, where the doctor tells him that they will need to operate and he won't be able to work for a year. Severide and Casey are still dealing with the death of fellow firefighter and mutual friend, Andy, and there's tension between Truck 81 and Squad 3 regarding the situation - Severide blames Casey for letting Andy go into the building while Casey blames Severide for not warning them about the vents which caused the explosion.ĭuring this time, Severide is suffering from an injury sustained in the fatal fire. Kelly is dedicated to his position in Rescue Squad 3 and is proud to be there, happy that he did not need the help of his father to get where he is today.

When he was ten, his father walked out on the family, leaving Kelly with abandonment issues. Kelly's father, Benny Severide, was a member of Rescue Squad 4, alongside Wallace Boden and Henry Mills.

Joe nimble addict