The string "greys anatomy 1121 hdtv-lol GR" is a standardized naming convention used by digital distribution groups: Represents Season 11, Episode 21.

Dr. Derek Shepherd (Patrick Dempsey) witnesses a horrific car accident and springs into action to save the victims. After successfully assisting them, he is struck by a semi-truck while returning to his car.

Indicates the source of the video was a High-Definition Television broadcast.