• 82%
    955 votes
  • Rate this episode
    What did you think?

Supernatural: Season 4

4x09 I Know What You Did Last Summer

  • 2008-11-14T01:00:00Z on The CW
  • 42 mins
  • Charles Beeson
  • Sera Gamble
  • United States
  • English
  • Drama, Mystery, Fantasy, Science Fiction, Action

What happened to Sam during the months Dean was dead? During the search for a girl named Anna Milton, who has a mysterious connection to angels, Sam reveals the astonishing events of the summer.