He's alpha of his pack.
She doesn't even know shifters exist until he claims her.

Sierra's day starts off like any other, but the ending is unlike anything she's ever experienced.
Jaxon isn't expecting to meet his mate, but when he walks into a diner and sees Sierra, he knows he's found the one. 
The same day he meets her, he finds out a group of rogue vampires want to take over his pack. The Small Town Pack is strong, it's one of the strongest around, and they won't back down. If the vampires want a war, then a war they will get.