The safety of every person in California's Witness Protection Program rests in US marshal Dutch Haas's capable hands. So inserting himself into Isabel Vargas's life to get the drop on her criminal uncle is a no-brainer. Except his target is fiery and intelligent--and she quickly becomes his partner instead of his mark. With threats stacking up, will Isabel and Dutch be able to stop Isabel's past from catching up with her before it is too late?