The mixed martial artists of Strikeforce pound through California in two evenings of intense action, including Fedor Emelianenko's long-awaited return to the ring to challenge fellow heavyweight Fabricio Werdum in a thrilling bout. Women's featherweight fighter Cristiane Santos takes on Jan Finney in a vicious brawl, while catchweights Robbie Lawler and Renato Sobral go the distance, and lightweights Josh Thomson and Pat Healy clash.