Elementary 7x9 On the Scent Season 7 Season 1 24 EpisodesSeason 2 24 EpisodesSeason 3 24 EpisodesSeason 4 24 EpisodesSeason 5 24 EpisodesSeason 6 21 EpisodesSeason 7 13 Episodes 7x1 - The Further Adventures 7x2 - Gutshot 7x3 - The Price of Admission 7x4 - Red Light, Green Light 7x5 - Into the Woods 7x6 - Command: Delete 7x7 - From Russia with Drugs 7x8 - Miss Understood 7x9 - On the Scent 7x10 - The Latest Model 7x11 - Unfriended 7x12 - Reichenbach Falls 7x13 - Their Last Bow Holmes and Watson work to determine if a long dormant serial killer has resurfaced in the wake of a sculptor’s murder in New York City. Also, Watson suspects Holmes is keeping something from her regarding tech billionaire Odin Reichenbach.