STAGE TUBE: Sneak Peek - Doctors Operate on Cojoined Twins on Tonight's GREY'S ANATOMY

On tonight's episode of ABC's GREY'S ANATOMY entitled "This Magic Moment", the doctors split into teams for a risky surgery involving conjoined twins; Bailey recruits Meredith to be a buffer between her and Ben when he puts pressure on moving their relationship to a more serious level; Richard teaches Alex a tough lesson in the OR; meanwhile Teddy questions Cristina about what exactly happened to Henry during his surgery. The episode airs tonight from 9:00-10:02 p.m., ET on the ABC Television Network.

GREY'S ANATOMY is the 2007 Golden Globe Award for Best Drama Television Series and multiple Emmy nominations, including Outstanding Drama Series.

In the current season, Meredith, Cristina, Alex, Jackson and April have all reached their 5th year as residents. In a year that can make or break a surgical career, the residents are tasked with their first-ever solo surgeries, no longer under their attendings' direct supervision in the O.R. Torn apart by Meredith's well-intentioned but devastatingly harmful interference in Derek's Alzheimer's clinical trial, Meredith and Derek are living apart. Their relationship hangs in the balance, as does the fate of their newly adopted daughter, Zola.

The show stars Ellen Pompeo as MerEdith Grey, Patrick Dempsey as Derek Shepherd, Sandra Oh as Cristina Yang, Justin Chambers as Alex Karev, Chandra Wilson as Miranda Bailey, James Pickens, Jr. as Richard Webber, Sara Ramirez as Callie Torres, Eric Dane as Mark Sloan, Chyler Leigh as Lexie Grey, Kevin McKidd as Owen Hunt, Kim Raver as Teddy Altman, Jessica Capshaw as Arizona Robbins, Jesse Williams as Jackson Avery and Sarah Drew as April Kepner.

To get a sneak peek at tonight's episode, click below!