Estelle Three-Hearts has one goal for the holidays – finish her charity calendar for the 'Smoke Detectors in Every Building' program to provide fire safety for the citizens of Three Lakes. Luckily, her uncle is a captain for the fire department who's recruited volunteers to pose for the sexy firefighter calendar. There's nothing more fun to look at than half-naked firefighters all year round.

Mark Redfeather, a Firebird shifter, has learned to use his birthright for firefighting rather than fire-lighting. When his captain asked for volunteers for the charity calendar, he had no plans to participate – until he meets Estelle, and recognizes her as his mate.

Estelle is human and knows nothing about the Elder Races, but when an arsonist strikes her home and studio, Mark is forced to reveal his secret. Estelle must decide if he's the monster she fears or the man who sets her heart on fire.