Lieutenant Abigail Hargrove comes from a long line of cops...dirty cops. She's an exemplary, detached officer when on duty with the Tacoma Police Department, but after hours she strives in secret to atone for her relatives' corruption. Abby agrees to ride with her mounted unit during the Washington State Fair, expecting a relaxing few weeks of horses and PR work, but when she catches a loose horse that crosses her path, Abby's private and public lives collide.

Wetland biologist Kira Lovell devotes her life to her daughter and to a vocal defense of the environment. After a bad relationship, she wants nothing more to do with domineering women, but a chance meeting with Abby throws her life--and her emotions-- into chaos.

When a kidnapping and a murder take place behind the innocence of the midway, Abby has to solve both crimes to protect Kira, even if it means revealing more of her family's shameful past.