The merger has begun, so has the competition. Next week on " Grey's Anatomy ", the residents of Seattle Grace and Mercy West vie for surgeries and their careers as day one of the hospital merger begins. The preview released for the episode revea more

Watch a preview of the Grey's Anatomy "Invasion" Season 6 Episode 4 airing Thursday October 15 at 9:00 p.m., ET. Episode Synopsis: The residents of Seattle Grace and Mercy West vie for surgeries and their careers as day one of the hospital merge more

Check out the first photos of Katherine Heigl new haircut on Grey's Anatomy season 6 episode 5, which will air on October 15 at 9pm on ABC. The episode is titled "Invasion" Episode Synopsis: The residents of Seattle Grace and Mercy West vie for more

The residents of Seattle Grace and Mercy West vie for surgeries and their careers as day one of the hospital merger begins. Meanwhile, Arizona stands by an enraged Callie when her father, Mr. Torres, employs a priest to help convince her to date men, and more