Freedom (1)
| Episode Number | 16 |
|---|---|
| Season | 4 |
| Aired | 2008-05-22 |
| Overview | A couple undergoes surgery. Derek and Meredith's clinical trial gets a second shot from a new patient. Izzie helps Alex. McSteamy hooks up with someone. |
| Runtime | 43 minutes |
| Absolute Number | 77 |
| Finale Type |