Part 1: Sanctuary
Meredith takes a pregnancy test and it’s positive! She tells Cristina immediately, but decides to tell Derek later that night.
Gary Clark, the man who blames Derek for his wife’s death, arrives at the hospital. He asks where he can find the chief of surgery, but no one has time to help him. He corners Reed in a supply cabinet and when she brushes him off, we gasp as he shoots her in the head! And then he shoots Alex, who’s just walking by. Alex manages to crawl to the elevator, even though he’s bleeding severely.
Cristina asks Owen, “Do you love Teddy or do you love me?” and when he can’t answer, she breaks up with him. Cristina’s mind is still on Owen when Clark asks her where he can find Dr. Shepherd. She gives him directions to Derek’s office. We hold our breath until the elevator opens, and then he tells her, “Have a nice day.”
April finds Reed’s body. She’s hysterical as she runs into Derek’s office covered in blood and tells him that someone shot Reed. Derek orders a lockdown of the entire hospital and leaves April in his office while he goes to warn Teddy and Owen, who are in surgery. He tells Jackson that there’s a shooter in the hospital, but not to say a word to anyone else until the patient is stable.
Callie is barely speaking to Arizona after their breakup, but now they’re sealed together in the pediatrics ward.
Although Meredith and Cristina know there’s a lockdown, they have no idea why. Meredith decides she can’t wait any longer to tell Derek about the baby and Cristina goes with her. Derek sees them and ushers them both into a closet, telling them not to move.
Clark loses his patience and starts shooting. Mark grabs Lexie and pulls her to safety. He pushes the button for the elevator, but when it opens, there’s Alex, bleeding out! They carry him into the nearest conference room and examine him on the table. The bullet’s still inside, so Mark has to get it out.
Miranda is with a patient when Charles comes in and tells them the shooter’s on this floor! Miranda orders the patient to play dead and tells Charles to hide while she dives under the bed. Clark finds Charles in the bathroom. He asks if he’s a surgeon and when he says he is, Clark shoots him! He then drags Miranda out from under the bed and asks her the same question, but she insists she’s just a nurse. Clark apologizes and leaves. Miranda tells Charles, “We’re all going to be fine,” but he’s sure he’s dying. She swears she’d tell him if he were.
Despite there being a shooter on the loose, Owen takes his patient to the ICU and Teddy insists on going with him.
Derek sees Clark and warns him to get to safety. “I know it’s not safe. That’s the point. You don’t recognize me do you?” Derek finally realizes who Clark is, and that he’s here to kill him.
Meredith and Cristina leave the closet just in time to see Clark pointing the gun at Derek.
Derek is trying to talk Clark out of shooting him, saying, “I know your loss. Two guys killed my father for his watch, right in front of me. I didn’t become a doctor because I wanted to be God. I’m a doctor because I wanted to save lives. I make mistakes. I’m flawed. We all are. Today, I think, for you, is just a mistake. You’re a good man. I can see that in your eyes. Can you see it in mine?”
Clark lowers the gun, but just then April bursts out of Derek’s office. As Derek turns to warn her, Clark shoots him in the chest!
Part 2: Death and All His Friends
Clark is about to shoot Derek again when he sees the SWAT team descending, so he flees. Derek needs surgery immediately, and since she can’t find Teddy or Owen, Cristina realizes she’s the only one who can operate. She orders a distraught Meredith to wait outside the OR.
Alex needs a transfusion, so Lexie goes to get some blood packs. We gasp as she runs into Clark. “I only planned to shoot Dr. Shepherd. And Dr. Weber,” he tells her. “And you,” since she was the one who unplugged his wife’s life support system. Just as Clark is about to shoot, a SWAT bullet wings him. Lexie returns to Alex’s side with the blood he needs. “Please don’t die,” she begs. “I love you,” she whispers as Mark looks on.
A wounded Clark wanders into the peds ward, where a terrified Callie hands him some bandages and tells him to take them and go.
Miranda has got to get Charles to an OR if he’s going to live. She drags him to the elevators, but they’ve all been shut down. Miranda loses it, then collects herself to be there for him until the end. She tells Charles he’s dying but says, “You are not alone. I’ll be here the whole time.” He asks Miranda to find Reed: “Can you tell her I loved her?”
Our heart breaks for both Alex and Lexie as Alex confusedly calls Lexie “Izzie” and begs her not to go. Lexie sobs, “I won’t ever leave you. We’re going to be together always.” A SWAT member arrives and tells them that this floor is clear.
Teddy and Owen get their patient outside but are taken into custody as potential suspects. “She’s still in there. Go. It’s okay to choose,” Teddy tells Owen and he runs back inside. Richard also manages to sneak in, despite the lockdown. Alex is whisked away to another hospital and Teddy doesn’t answer when Lexie asks if he’s going to be okay.
Owen finds Meredith and she tells him Cristina is operating on Derek. He goes in to the OR but we’re shocked to find Clark standing there with a gun to Cristina’s head: “Stop fixing him,” Clark orders. “Just let him lie there and die.”
Cristina keeps operating anyway. Owen tells Clark, “She is the woman that I love. You shoot her and I will kill you.”
“I came here for justice. An eye for eye. The only person I want in this room is Shepherd.”
Meredith appears and says, “Shoot me. I’m his wife. I’m your eye for an eye.” He turns the gun on her, but Cristina blurts out that Meredith is pregnant. Clark hesitates and when Owen tries to get the gun, Clark shoots him instead. Jackson tricks Clark into thinking that Derek has flatlined, so he’ll leave, but Cristina manages to save Derek after all. Owen’s wound is a through-and-through but as Meredith goes to help him, April asks her if she’s been shot too, as she’s bleeding. We see Meredith wince, but she says, “I’m okay. I’m having a miscarriage.”
Richard finds Clark sitting in the room his wife died in. Clark laughs, “I was going to kill you. And then I was going to shoot myself. But I only have one bullet left.” “What’s it gonna be Mr. Clark, me or you?” Richard asks. He tells him that if he shoots himself, he’s free, but if he shoots Richard, he’ll go to jail. We hear a shot just as the SWAT team closes in. Clark’s taken his own life.
After their ordeal, Arizona tells Callie, “I can’t live without you,” and that they”ll have “10 kids.”
After the surgery, Cristina tells Meredith that Derek’s asking for her. Meredith takes the pregnancy test from her locker and throws it away.
(via ABC.com)