Quinnlan Ashe

Brett (Kara Killmer) attempts to make a lifesaving decision in the field to someone near and dear to the firehouse family. In an effort to impress Lily (guest star Ariane Rinehart), Otis (Yuri Sardarov) scrambles to get everything together for the grand opening of Molly's North. Meanwhile, Boden (Eamonn Walker) becomes emotional following the rescue of a famous blues player from a burning apartment building and Dawson (Monica Raymund) struggles to come to terms with how she has been dealing with her father.

After saving a young girl, Dawson (Monica Raymund) is forced to make a tough decision when she finds out the girl's father is addicted to painkillers. Herrmann (David Eigenberg) loses his cool and gets into an altercation with a police officer after responding to a call. Otis (Yuri Sardarov) and Cruz (Joe Minoso) are on a mission to find out who Brett (Kara Killmer) is dating. Meanwhile, Boden (Eamonn Walker) is skeptical when Donna's (guest star Melissa Ponzio) brother Julian (guest star Michael Cognata) unexpectedly comes to town.

Dawson (Monica Raymund) and Casey (Jesse Spencer) do everything they can to locate Bria's (guest star Quinn Cooke) whereabouts after discovering important new information. Lt. Severide (Taylor Kinney) reunites with Chief Grissom (guest star Gary Cole), and old family friend. Meanwhile, Cruz (Joe Minoso) enlists the help of Brett (Kara Killmer) and Mouch (Christian Stolte) to create a new tool and Kidd (Miranda Rae Mayo) and Zach (guest star Daniel Di Tomasso) go on a date.

After saving a girl from a car accident, Chief Boden and Lt. Severide are taken aback when they receive a surprise package. Brett struggles to keep quiet about Cruz reacquainting with his now-married high school sweetheart and Otis tackles his next challenge.

Brockmire attends an event honoring broadcasters. Charles attempts to impress a girl.