THE INVESTIGATION TURNS INWARD... In Elementary: The Fourth Season, Sherlock Holmes (Jonny Lee Miller) and Dr. Joan Watson (Lucy Liu), re-ignite their unique chemistry - a relationship that allows them to solve an increasingly complex series of crimes in the Big Apple. But the worm in the Apple makes itself known when Sherlock's father, Morland Holmes (John Noble), arrives in NYC to live full-time. His apparent concern with his son's increasingly intense behavior and addiction relapse does nothing to temper Sherlock's suspicions and mistrust regarding his arrival. With new cases materializing and emotional crises building, it's the most electrifying season of Elementary yet! Investigate for yourself with all 24 episodes contained in this six-disc set.