Shay corners Severide in the locker room to let him know that everything regarding her pregnancy is proceeding according to plan. Severide shares Shay's enthusiasm. The crew is called out to a rescue in which a warehouse worker is buried under a collapsed shelving unit. The victim is in shock, and the team quickly begins digging the victim out, accidentally starting a small chemical fire in the process. Luckily, Mills comes up with a quick solution to get the victim out of harm's way.