Season 5Episode 1743m
I Will Follow You Into the Dark
2009-03-128.4 rating
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."
2009-03-128.4 rating
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."