GREY'S ANATOMY - "Flight" - Faced with a life threatening situation, the doctors must fight to stay alive while trying to save the lives of their peers; Bailey and Ben make a decision regarding their relationship; and Teddy is presented with a tempting offer. Meanwhile, Richard plans a special dinner for the residents, on the Season Finale of "Grey's Anatomy," THURSDAY, MAY 17 (9:00-10:01 p.m., ET) on the ABC Television Network. (ABC/CRAIG SJODIN) SANDRA OH, ELLEN POMPEO, PATRICK DEMPSEY