Season 6, Episode 5

Invasion

8.1/ 10October 15, 200943 min

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 Izzie experiences the brunt of her new surgical competition.

Directed by
Tony Phelan
Written by
Mark Wilding

Guest stars

All episodes — Season 6

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  1. S6 E1

    Good Mourning

    Sep 24, 20098.543 min

    The hospital staff is left to deal with the aftermath of George's passing. Hitting the staff hard, they all find unique ways to get through the various stages of grief. George's mom returns, faced with the difficult task of deciding what to

  2. S6 E2

    Goodbye

    Sep 24, 2009843 min

    Everyone is struggling after losing one of their own and are turning to any distraction they can find. Meredith and Derek seem to be consummating their marriage anywhere and everywhere, while Cristina and Owen have been instructed to abstai

  3. S6 E3

    I Always Feel Like Somebody's Watchin' Me

    Oct 1, 20098.243 min

    Several weeks after her near-death experience, a recovering Izzie returns to work. Meanwhile, nervous that there will be layoffs in the hospital in the wake of an announcement from the Chief, the Seattle Grace residents compete to survive t

  4. S6 E4

    Tainted Obligation

    Oct 8, 2009843 min

    When Meredith and Lexie's father, Thatcher, returns to the hospital with a failed liver, it's up to Meredith to save his life. Meanwhile, Izzie empathizes with a patient riddled with tumors, as Mark, annoyed with Cristina's competitive zeal

  5. S6 E6

    I Saw What I Saw

    Oct 22, 20098.743 min

    After a burn victim unexpectedly dies in the midst of a chaotic ER, the Chief and board member Jennings interrogate the residents to find the culprit, as all the Mercy West and Seattle Grace resident defends their actions in an effort to sa

  6. S6 E7

    Give Peace a Chance

    Oct 29, 20098.643 min

    When Isaac has an inoperable tumor wrapped around his spine, he wants Derek to do the impossible. Derek tests the Chief's authority when Richard objects to moving forward with the risky surgery.