Henry reluctantly agrees to prosecute a 12-year-old girl accused of murder, but underhand tactics by the devious defence barrister and doubts surrounding the innocence of his own child witnesses soon reveal the case is more complex than it first appeared. Meanwhile, the arrival of his son Zak from Australia threatens to throw his life into turmoil.
In the last programme of the series, Henry takes on the appeal of a convicted murderer involved in a bizarre sex triangle with his girlfriend and a younger man - a case which mirrors the barrister's own tangled love life, as his lover Polly finally leaves her husband. Meanwhile, Henry's father has information which brings him closer to Cleo in an unexpectedly personal way.
Henry defends a nurse accused of killing some of her patients; but is she innocent?