Ends 12/31/12. 'Day 79.' The discovery of a burnt-out van offers fresh evidence to Barclay's team, but the prime suspect slips away. As a furious Matt joins Gary (and the police) in a nighttime stakeout, Amy celebrates her retirement with a farewell party. But Amy's work on the case isn't quite finished--several new clues bring her and Barclay to the verge of finally solving the case. watch