[s4e14] The Becoming -

: 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.

is the 14th episode of the fourth season of the medical drama Grey's Anatomy , which originally aired on May 8, 2008. Primary Plotlines [S4E14] The Becoming

: Meredith Grey and Derek Shepherd admit a military veteran into their clinical trial. They work on synchronizing their virus injections into a tumor during a simulation. : Cristina is forced to confront her lingering

: Richard Webber appoints George O'Malley to manage the new dating forms to prove he is delegating effectively to his wife, Adele. Primary Plotlines : Meredith Grey and Derek Shepherd

: 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.