Rocky Mountain Hero by Melissa Williams

Scott Aldridge was in way over his head.
After taking over guardianship of his niece and nephew, Scott finds himself swapping out Air Force pilot jumpsuits for baby carriers. Returning to his hometown is an easy decision but he never thought his childhood crush would come bashing through his front door, coming to his rescue.
Firefighter Elyssa Laidlaw has had a string of bad luck when it comes to matters of the heart. So when her team responds to an apartment fire and she runs into her brother’s best friend—and the object of her teenage fantasies—she believes the universe is playing a trick on her. Scott’s all man now. One with big responsibilities. The last thing they both need is to get tangled up in a sizzling romance.
When Scott is called into action to help the local Rocky Mountain Search and Rescue team, disaster strikes. Will they be able to weather the storm together or crumble under the pressure?