Young musician Bess King races from job to job in New York while trying to find the courage to perform her own material.

Taking her brother Louie’s advice, Bess gets rehired at the club—and her first paying gig thanks to her friend and coworker Benny.

Gallo, Violet and Ritter debut their microbrewery business at Winterfest. Brett prepares to present her paramedicine program to an oversight panel. Firehouse 51 gets in the holiday spirit.

Griffin learns the truth about his father’s death and reveals why he really came to visit Casey. Gallo, Ritter and Violet take steps to expand their microbrewery business.

Casey makes a life-altering decision. Gallo, Ritter and Violet agree to an interview and photo shoot. Brett and Mouch launch the paramedicine program. Cruz comes closer to fatherhood.

The return of The Freelancer unveils a conspiracy involving a local photographer. Ressler hits a personal milestone.