Elementary 7x04 "Red Light, Green Light" Promo

https://instagram.com/p/ByUIhsBgJhe



An explosion at a traffic stop puts Holmes and Watson on two separate tracks of investigation as they try to determine whether the attack was gang-related or a terrorist attack. Also, Holmes and Watson suspect there is more for them to discover regarding the recent attack on someone within their inner circle. Jonny Lee Miller directed the episode.

Source 1 + 2