Grey's Anatomy

Season 5 Episode 17: I Will Follow You Into the Dark

Derek decides to quit after learning that more of his patients have died than survived; Izzie's interns make an unsettling discovery about "Patient X."

Genre:

Drama

Seasons:

23

Episodes:

466

Cast:

Ellen Pompeo, Chandra Wilson, James Pickens Jr.

Quality:

HD

Duration:

43 min

First Air:

2005

Rating:

8.2