For Judge John Deed, following the letter of the law can be tricky when the courtroom is clouded with conspiracy, heartbreak & scandal. Controversial cases, pressure from high places, family problems and a broken heart; the eponymous judge has them all in the fourth series. In the courtroom, Deed presides over a murder that threatens to unmask the corruption of the prison service while the case of an animal rights activist brings him into conflict with his equally strong-willed daughter and Deed's relationship with Jo Mills deteriorates. What will it take for justice to be served - in and out of the courtroom?