What Episode Does Derek Die?

The episode where Derek dies is Season 11, Episode 21. Titled 'How to Save a Life', it was one of the most challenging episodes to film. The car crash scene required extensive stunt work and special effects. Patrick Dempsey's performance, especially in the scenes where Derek can't speak, was incredibly moving on set. It was an emotional shoot for the entire crew, knowing we were saying goodbye to a character we'd worked with for 11 years.