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."
5 - 24Now or NeverMay. 14, 2009- 5 - 23Here's to the Future DaysMay. 14, 2009
- 5 - 22What a Difference a Day MakesMay. 07, 2009
- 5 - 21No Good at Saying Sorry (One More Chance)Apr. 30, 2009
- 5 - 20Sweet SurrenderApr. 23, 2009
- 5 - 19Elevator Love LetterMar. 26, 2009
- 5 - 18Stand By MeMar. 19, 2009
- 5 - 17I Will Follow You Into the DarkMar. 12, 2009
- 5 - 16An Honest MistakeFeb. 19, 2009
- 5 - 15Before and AfterFeb. 12, 2009
- 5 - 14Beat Your Heart OutFeb. 05, 2009
- 5 - 13Stairway to HeavenJan. 22, 2009
- 5 - 12Sympathy for the DevilJan. 15, 2009
- 5 - 11Wish You Were HereJan. 08, 2009
- 5 - 10All by MyselfDec. 04, 2008
- 5 - 9In the Midnight HourNov. 20, 2008
- 5 - 8These Ties That BindNov. 13, 2008
- 5 - 7Rise UpNov. 06, 2008
- 5 - 6Life During WartimeOct. 30, 2008
- 5 - 5There's No 'I' in TeamOct. 23, 2008
- 5 - 4Brave New WorldOct. 16, 2008
- 5 - 3Here Comes the FloodOct. 09, 2008
- 5 - 2Dream a Little Dream of Me (2)Sep. 25, 2008
- 5 - 1Dream a Little Dream of Me (1)Sep. 25, 2008
