Where To Stream Grey's Anatomy Season 5 Episode 22
What a Difference a Day Makes
- Aired May 7, 2009
- 60 Min
- Rated 9.1
- Number 18 Of 469 Rated Episodes
As Meredith, Derek and all of their friends prepare for the big wedding, a group of college students, injured in a car crash as they were heading to their graduation ceremony, is admitted to the ER. Meanwhile, Izzie fears the worst when she begins experiencing familiar symptoms.