David Anthony Hinton

It's the holiday season at St. Denis; Alex and Ron care for a patient whose diagnosis is not what it seems; Joyce enlists Serena's help to boost St. Denis' online presence; Bruce and Matt help a Santa in need.

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.