The heat is on in Atlanta when the BAU investigates murders of women and realizes they are looking for more than one unsub.
While Pruitt grieves a monumental loss, Andy refuses to do the same and, instead, throws herself into work; the crew responds to a widespread carbon monoxide leak; Sullivan makes a controversial choice for captain.
The new Seattle fire chief is introduced to Station 19 and leaves the crew skeptical; a department store fire caused by exploding fireworks triggers painful memories from Ben's past and inspires him to pursue a new endeavor.
After some tense and traumatic experiences, the firefighters get a visit from a psychologist.
In an effort to increase morale, Maya takes the crew on a team-building camping trip that doesn't exactly go according to plan; the crew works to save first-time campers after a bear attack; Pruitt takes steps to repair his relationship with Andy.
