Denny Crane is so convinced that Carl Sack will be on the losing side of a cockfighting case that he wagers an extremely large sum with him; Alan Shore and Lorraine Weller pursue a lawsuit against a high school which teaches abstinence-only sex education after a 15-year-old girl contracts HIV; and Katie Lloyd and Jerry Espenson take on the case of a woman who alleges that a psychologist's therapy sessions caused her husband's suicide.