After the explosion in the mattress factory, Brett has an arm fracture and Boden organizes everyone to get out of it. Unfortunately, they find Otis unconscious and later in the hospital dies. Three months later, Joe cannot overcome his friend’s loss, the investigation about the mattress factory hasn’t closed yet, and Casey hasn’t found a replacement for Otis. Brett finds a job as a paramedic at her hometown at the Fowlerton Firehouse, but she seems not happy living there with Kyle. Emily has a new partner, Chad Collins, a lazy and barely competent paramedic. Also, Boden intervenes to the inquiry, which was supposed to blame Casey for asking the paramedics to enter the factory and clears him for any wrongdoing.