As Casey and Dawson try to find harmony at home, Louie's father throws a wrench into their family plans.
Dawson and Casey face legal issues as they try to retain legal guardianship of Louie. Severide continues to look for a bone marrow procedure to help Anna. Brett opens up to Dawson.
Casey and Dawson apply for permanent adoption of Louie, but encounter an obstacle. Severide receives an interesting proposition.
Frank faces a backlash after an officer's body camera malfunctions during an altercation with a civilian.