Grey's Anatomy

P.Y.T. (Pretty Young Thing)

Aired Feb 10, 2011 · 9:00 PM ET · 43 min

Thatcher Grey, Meredith and Lexie's father, returns to Seattle Grace with stomach pains and a new, twenty-something tattooed girlfriend, Danielle. Meanwhile, Alex clashes with the new OB, Dr. Lucy Fields, over a patient and Mark places Jackson on his service in exchange for information on Lexie.