Severide decides to look into Tara's past to find evidence that would help him fight the criminal charges she filed against him. Peter asks Gabby to move in with him, but she feels burdened by the secret she's been keeping about his mother. A little girl with a special connection to the firehouse lights everyone's spirits up. The calls of the day include a collapsed apartment building, a car accident and a lightning victim. By the end of the shift, a personal tragedy hits one of the team members.
Did You Know?
[about a pair of red underwear he found in the laundry room
Those look like something a Russian would wear on his wedding night.