Tim Gamble

After responding to a car accident, Casey (Jesse Spencer) and Dawson (Monica Raymund) become skeptical when a domineering husband continues to answer for his injured wife. Cruz (Joe Minoso) becomes frustrated with Herrmann (David Eigenberg) and Mouch (Christian Stolte) when he discovers they have contacted people regarding his "Slamigan" invention without his knowledge. Kidd (Miranda Rae Mayo) uncovers something meaningful and important to Severide (Taylor Kinney) while Brett (Kara Killmer) discovers some potentially unsettling news.

Casey (Jesse Spencer) goes to drastic measures to help his friend Kannell (guest star Kamal Angelo Bolden). Lt. Severide (Taylor Kinney) helps an old widow come to terms with letting go, but realizes he may be the one needing help. Otis (Yuri Sadarov) and Cruz (Joe Minoso) deal with surprises when they find a new roommate to move in. Dawson (Monica Raymund) and Brett (Kara Killmer) get crafty to save a young girl.

Walker must figure out who is trying to sabotage a Native American race car team as it prepares for a big race.

When the driver of Team Cherokees car is sidelined Walker must take the wheel to keep the team from being disqualified from the race.