Robin Lockwood is now a prominent defense attorney in Portland, Oregon, but a decade ago, she was a ranked and rising MMA fighter. Her career came to a quick end when she was knocked out and concussed in the first round by Mandy Kerrigan, a much more talented fighter. Now the situation couldn't be more different, with Kerrigan on her last legs, her career nearly over, arrested for the quadruple murder of the entire Finch family . . . and Kerrigan's only possible friend is the attorney she beat so many years ago.