Grey's Anatomy Season 9, Episode 15 Preview: Derek Resigns?! (VIDEO) Share Tweet February 7, 2013 at 10:22PM EST by Rebecca Martin Related: Grey's Anatomy, Season 9, Season 9: Episode 15 full size Credit: Video Still It looks like the bankruptcy plotline will come to a head on Grey's Anatomy Season 9, Episode 15: "Hard Bargain." Will the docs who won millions be able to save the hospital? And why does Derek (Patrick Dempsey) say he's resigning in this preview? Credit: YouTube Video: Grey's Anatomy Season 9, Episode 15 Preview: Will the Hospital Close? (VIDEO) Rebecca Martin is an editor at Wetpaint Entertainment. Follow her on Twitter @BeccaDMartin.