Elena Estes often risked her life when she served as a police officer, and once paid a very high price for it. Having left the police, broken and not believing in herself, she has difficulty returning to life. One day, Estes undertakes to help a girl who asks to find her missing older sister. The tracks lead Estes into the world of horse racing and dirty games. Estes understands that at the end of the journey he may lose everything. In this race where life is at stake, Estes is the dark horse that no one is betting on, but perhaps that is what will allow her to win...