The new Seattle fire chief is introduced to Station 19 and leaves the crew skeptical after his visit. Later, the firefighters are called to a department store fire caused by exploding fireworks, which triggers painful memories from Ben’s past and inspires him to pursue a new endeavor. Maya advocates for herself and her career, while Jack becomes more intertwined with an acquaintance; and Andy and Ryan have a heart-to-heart.

Ben, Jackson and Emmett are put in a precarious and dangerous position with a potential victim. Andy’s search for more background on her family opens her eyes, and Vic and Travis are caught in the middle of a corruption scheme.

When the COVID-19 pandemic hits Seattle, the Station 19 crew leans on each other for support. Andy tries to make sense of her mother’s return, while Sullivan settles into a new routine. And it’s all-hands-on-deck when a group of teenagers unintentionally starts a wild fire.

Ben finally faces the health issues he has been putting off. Meanwhile, Jack and Inara help their neighbor out of a trashy situation, and Carina and Maya reevaluate their relationship.

Maya addresses some unresolved family issues, and the crew takes matters into their own hands when faced with a life-or-death moment on scene. Meanwhile, Andy and Sullivan’s marriage is put to the test.

Andy and Sullivan’s relationship continues to be tested. Meanwhile, Emmett joins Dean and Vic on a mental health call, and Maya does some soul searching.

The Station 19 crew offers aid to a man who sets himself on fire. Theo proves his devotion to Vic; Sullivan seeks advice from Dr. Webber; and Travis comes to a realization about his love life.

Andy tracks down a witness to testify at her trial. Meanwhile, Carina and Maya deal with a stressful situation, and the crew responds to a car wreck.

The Station 19 crew jumps into action as a violent tornado rips through Seattle. Amidst the chaos, the team makes a shocking discovery buried under a tree, and Travis' first responder instincts kick into high gear at a political event.