Chicago Fire (2012)

S06E14 Looking for a Lifeline

Following their response to a car crash, Casey and Dawson grow suspicious of a controlling husband who repeatedly speaks for his injured wife. Meanwhile, Cruz is annoyed with Herrmann and Mouch after learning they've reached out to others about his "Slamigan" invention without his consent. Kidd stumbles upon something significant to Severide, while Brett uncovers some troubling information that could have serious implications.