I Must Have Lost it on the Wind

Written by Stacy McKee and directed by Kevin McKidd, the episode aired on the American Broadcasting Company (ABC) in the United States on September 25, 2014.

The episode centers on Meredith Grey (Ellen Pompeo) uncovering repressed memories about her half-sister Maggie Pierce (Kelly McCreary) while clashing with her in the OR.

Callie Torres (Sara Ramirez) and Arizona (Jessica Capshaw) debate surrogacy, while Owen Hunt (Kevin McKidd) struggles with Cristina Yang's (Sandra Oh) absence.

Alex Karev (Justin Chambers) and Miranda Bailey (Chandra Wilson) compete for Cristina's board seat, while Derek Shepherd (Patrick Dempsey) struggles with choosing between his family and his career plans in Washington, D.C..

Meredith recalls a moment from the past, where Richard Webber (James Pickens Jr.) broke up with her mother, Ellis Grey (Kate Burton), at a carousel.

While Meredith believes it all happened on the same day, the scene shows her in a different dress outside the hospital, indicating her suppressed memory of Maggie Pierce's (Kelly McCreary) birth.

Jackson Avery (Jesse Williams) offers to go for drinks, Richard suggests playing Jenga, and Derek Shepherd (Patrick Dempsey) invites him for a "man-date."

[2] In an interview with The Hollywood Reporter, Oh reflected on her character's journey, highlighting Ellen Pompeo’s (Meredith Grey) line, "I am not finished," as particularly meaningful.

TV Fanatic praised the episode, stating, "The acting remains stellar, the drama is mixed with just the right amount of humor, and darn it if I'm not now wrapped up in the future of MerDer.