Last night's episode of Grey's Anatomy, "In the Midnight Hour," the ninth episode of Season Five, contained plenty of memorable moments, a couple of which we've posted below.

In the flrst clip, Meredith and Cristina are confronted by the Chief after coming to the rescue in Lexie's debacle, but end up turning on each other in an emotional argument ...

[video url="http://www.tvfanatic.com/videos/you-knew-about-this-yesterday/" title="You Knew About This Yesterday?"] [/video]

In the second clip, Izzie confesses to Alex what a mess she is, but assures her he isn't going anywhere. Denny watches as Izzie leaves with Alex, but promises he'll be right here ...

[video url="http://www.tvfanatic.com/videos/ill-be-right-here/" title="I'll Be Right Here"] [/video]

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.