When an Army veteran threatens to blow up a pawn shop, Sullivan reflects on his time as a Marine to deescalate the situation.
Sullivan is eventually able to help by reminding the veteran of the good things in his life, and things end peacefully.
During the incident, Sullivan reveals to the veteran, and Andy, that he has chronic nerve pain and has been self-medicating.
Andy is supportive of Sullivan's struggles.
Maya calls a meeting with Andy and Sullivan and announces she wants to step down as captain.
However, at the end of the episode, Andy tells Maya she can't step down, and they two start to repair their relationship.
Pruitt collects the firefighter boots and places them on the steps of City Hall to symbolize the firefighters who lost their lives to cancer.
This garners media attention, and Pruitt calls out Chief Dixon.
Vic and Dean help an old man battling Alzheimer's disease who comes wandering into the fire station.
The old man's daughter comes to the fire station and explains she dropped her father off for a brief respite, and Vic understands the woman's plight as flashbacks reveal over a period of years Vic dealt with her grandmother's dementia as it got increasingly worse.
Chief Dixon continues to want his son to be given special treatment, something Emmett seems to expect too.
At the end of the episode, Station 19 learn Rigo died.