Initially clashing over Gallo's improvisational tactics on a call, Carver eventually bonds with Gallo after the jumper incident. Carver reaches out to support Gallo, marking a turning point in their professional relationship.

While responding to a call regarding someone trapped on a roof, Gallo discovers a man intending to jump. Despite his compassionate attempt to talk the man down, the man apologizes and leaps to his death, leaving Gallo devastated.

Severide is forced into a difficult collaboration with Detective Pryma on a case involving explosives. This partnership places Severide in a moral gray area regarding a dirty cop who previously threatened him and Stella Kidd.