: 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.

: Meredith's therapist, Dr. Wyatt, challenges her on her "cowardice" regarding her fear of a relationship with Derek, leading to a tense confrontation. Notable Scenes & Details

: Richard Webber appoints George O'Malley to manage the new dating forms to prove he is delegating effectively to his wife, Adele.

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

: Callie Torres and Erica Hahn share an awkward but improving dynamic at Joe's bar after Addison Montgomery's previous comments about them.

: 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.

: The episode features a tribute to military members, centered around the veteran patient and his partner. "Grey's Anatomy" The Becoming (TV Episode 2008) - IMDb