On the February 17 episode of Grey's Anatomy, Meredith looks to prove she is Chief Resident material and learns anything can happen when she runs the ER for a night.

"Golden Hour" is the episode taking place in real time. It will be interesting to see if the filming style resembles the faux-documentary episode or an episode of ER.

Meanwhile, Bailey sneaks off with Eli and gets into trouble, and everyone is shocked when none other than the Chief's wife, Adele, shows up as one of the ER patients.

Check out photos from "Golden Hour," which refers to the crucial first hour after a trauma, which can often be the difference between life and death, below:

Click here for photo galleries from the two episodes prior to this:

• "Don't Deceive Me" (February 3)
• "P.Y.T." (February 10)

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.