Don't Deceive Me (Please Don't Go)

"Full Grey's Anatomy Narration for this episode"

- Narrator(s)

Derek breaks ground on his Alzheimer's clinical trial and Meredith can't help but feel left out; Bailey's attempt to take the hospital into the age of new media with live tweets from the OR does not go over well with the Chief; and Callie, Mark and Arizona must learn to navigate through the pregnancy together, which starts off with Callie driving her new obstetrician.

Full Summary
Episode in detail.

Music
This episode's title originated from the song , originally sung by band/singer.
 * "Song" - Band/Singer

Quotes

 * 3 quotes from the episode.

Main cast

 * Ellen Pompeo as Dr. Meredith Grey
 * Sandra Oh as Dr. Cristina Yang
 * Justin Chambers as Dr. Alex Karev
 * Chandra Wilson as Dr. Miranda Bailey
 * James Pickens Jr. as Dr. Richard Webber
 * Sara Ramirez as Dr. Calliope 'Callie' Torres
 * Eric Dane as Dr. Mark Sloan
 * Chyler Leigh as Dr. Alexandra 'Lexie' Grey
 * Kevin McKidd as Dr. Owen Hunt
 * Jessica Capshaw as Dr. Arizona Robbins
 * Sarah Drew as Dr. April Kepner
 * Jesse Williams as Dr. Jackson Avery
 * Patrick Dempsey as Dr. Derek Shepherd