Rosie Bratton is a recovering alcoholic. Divorced, working a dead end job, and with a young daughter she only sees on alternate weekends, her life is going nowhere. Her hopes hang on the outcome of a custody battle to regain primary custody of her daughter, and the vague possibility things might get better together. When circumstances turn bleak, Rosie nearly retreats into the bottle, but her sponsor has a solution. Felix was once a mixed martial arts contender. Now, he's turned his talent toward teaching his skills to others. If Rosie becomes his student, he hopes she can learn how to be a stronger, focused, better person. Some people are born to fight - in the cage and out - and Rosie is one of them. When she's given the moniker Rosie the Ripper, she becomes something more than she was before - and it may be enough to give her a fighting chance....