: Izzie Stevens discovers that Ava is not actually pregnant and is experiencing a psychological break, but she struggles with maintaining patient confidentiality versus telling Alex.
: Callie Torres and Erica Hahn share an awkward but improving dynamic at Joe's bar after Addison Montgomery's previous comments about them. [S4E14] The Becoming
: Following complaints about Mark Sloan's multiple trysts, the nurses go on strike against him. This leads to the implementation of a "date-and-tell" policy at Seattle Grace, requiring all staff to report sexual relations. : Izzie Stevens discovers that Ava is not
: Cristina is forced to confront her lingering feelings for Preston Burke. A significant moment in the episode features her singing during a surgery while dealing with professional and personal blows. This leads to the implementation of a "date-and-tell"
is the 14th episode of the fourth season of the medical drama Grey's Anatomy , which originally aired on May 8, 2008. Primary Plotlines