In Hope, Arkansas, Kelly and her team investigate the murder of a young mother who was brutally executed in her home. The clues to her killer's identity may rest in the hands of her 10-year-old son who was in his bedroom at the time.
As the fourth and final season opens, Gordon enjoys success while Joe works to keep their web project afloat. Cameron extends a business trip while Donna launches a new venture.
As a new conspiracy takes shape, Matt finds old habits are hard to break, Jessica gets in over her head, Luke tracks a lead, and Danny meets his match.