Tonight's episode is called "Collision" and begins right after Ana shot Shannon in the chest. Thanks to everyone who joined us in the chatroom. Sorry I wasn't too chatty. I was busy typing up this recap post.

The episode surrounds Ana, and it's the first time we've had an episode's flashbacks surround one of the tail-enders. There's a bunch of little spoilers up front, so I'll save most of the details for after the jump.

I'll just start by saying that all the promised thrills of last week's episode come through in this one. There's a lot of tension and interesting bits going on as the two ends of the plane move closer and closer to collision....get it? Anyway, we open with a flashback into Ana's life and you can find out more after the jump...Everything starts with Ana, angry as usual, firing off rounds at a firing range. This is followed quickly with her seeing a therapist and she asks if she can go back to work. He consents by handing her her badge. We come out of the flashback and Sayid goes to attack her but Mr. Eko takes him down and they tie him up to a tree.

So we know Ana is a cop, and the more the episode goes on the more I realize why I don't generally like cops. They tend to go power mad, just like Ana has done ever since she first showed up on this show. Ana is a cop and it turns out her mother is her captain. We discover that she's was in an officer related shooting.

Mr. Eko defies Ana and throws Sawyer up on his shoulders to take him to the other camp, saying, "I'm not doing it for him. I'm doing it for me."

Back into a flashback with Ana in a police car with her partner. Evidently, Ana had a love interest named Danny who went splitsville with her according to the conversation. As she's been doing on the island, she bullies her partner into taking a call that wasn't theirs. A baby is crying and she flips out and pulls her gun. Her partner starts yelling at her and says, "Holster your weapon, now," and we cut to her holding her gun and looking at Sayid. Michael takes Sayid water and says to Ana, "I'm taking him water. You want to shoot me? Shoot me." He talks to Sayid and brings him up to date with everything and tells him about Walt's abduction by the others.

The other story line of the show so far has featured Kate and Jack having a little golf competition, teasing and flirting with one another. Jack shanks one into the trees, and stubbornly goes after it rather than taking the drop. Mr. Eko comes from behind him with Sawyer over his shoulders and says, "Where is the doctor?" They take him underground where Locke is sitting watching the button and Jack begins to treat him. Locke comes to ask what happened just as the timer starts beeping. Mr. Eko is looking around the bunker at the guns and somewhat confused when Locke comes up and they exchange hellos.

Cut to Ana still looking upset as Bernard comes to ask what they're doing just sitting there. She's a total nut job. Sayid yells out that she has no plan, only guilt and a gun. She starts asking for supplies from the other camp, including more ammo. Jin agrees to stay with Sayid while Michael goes to get the supplies.

Back into another flashback where Ana's partner is confronting her about her previous actions of pulling the gun. They are interrupted by someone announcing that they got Ana's guy. Turns out someone confessed to shooting her 4 times in the chest (into her vest), but Ana says it's not the guy when she goes to identify him. Out of the flashback to Ana looking at Shannon lying dead on the ground and then we cut to Eko and Locke in the bunker. Eko tells Locke about the accident where Shannon was shot. Mr. Eko keeps looking at the guns in the bunker and tells Locke that he cannot take him to the other tailenders.

Back to Jack and Kate trying to help Sawyer. Kate helps Sawyer take a pill to help fight the infection. Jack jokes that he never learned the whole "whisper in the ear thing" in medschool. Ana's people start leaving her, beginning with Bernard who says he is going and doesn't want to do anything to do with what she is doing. Libby leaves with him and Ana tells Jin to leave too and he abandons her with Sayid. What the hell, Jin? Evidently, Sayid gave him a head nod, but come on!

We come back to Michael running through the woods and he finds Sun at her garden, asking her to take him to Jack. In the bunker, Jack starts yelling at Eko to take him to the others, Locke starts trying to calm him down but he's not listening and Michael shows up. They start packing up guns to leave. Mr. Eko says that Ana Lucia made a mistake and Jack seems to recognize the name so he agrees to go with Mr. Eko alone out to where they are.

Back to Ana and Sayid. Ana is asking Sayid where he is from and if he has kids. Sayid asks if she intends to kill him and she asks him if she should. He talks about torturing Sawyer and other men and says maybe she should. At this point, she stands up and says that she's a cop. She begins to tell the story of her partner and her showing up at a robbery. A kid said he was only reaching for his ID but he pulled a gun and shot her. She said she thought she was dead and that she feels dead and then Sayid asks what happened to the guy who shot her.

And here's where we see the very nasty secret that makes Ana the big bad crazy person that she is. We enter another flashback where Ana is in a bar following the guy who shot her out. She calls out his name in the parking lot then pulls her gun and says "I was pregnant" and shoots him 6 times. So she lost her baby because of the shooting and her guy left her. When the police catch the guy and he confesses she says that she doesn't recognize him, just so she can have the opportunity to track him down and kill him herself. After having this flashback and telling Sayid that she never found the guy, she cuts him free and throws the gun at his feet, saying to shoot her and that she deserves it. Sayid says, "What good would it be to kill you, if we are both already dead?" He then walks over to Shannon's dead body and embraces her.

Kate is tending to a shaking Sawyer, showing him more affection, consoling him by saying that he's home. Then we see Michael walking up on the beach in slow motion and Vincent runs out to greet him. Bernard and Jin emerge from the trees and Charlie runs up to embrace him and Bernard and his wife, Rose, spot each other, smile and walk up to one another and embrace and kiss. All this is filmed in slow motion with strings playing in the background. Sun is washing clothes and she sees Jin and they run into each other's arms and kiss and hug. Then we return to the woods with Jack and Mr. Eko walking slowly up to where Sayid stands holding Shannon's dead body and Jack looks over to Ana and the final shot is them standing face to face at either end of the shot, Jack in profile on the far left and Ana on the far right with the jungle and the island between them.

Make sure you check back tomorrow afternoon for Ryan's coverage of the episode in our TV Squad Lost podcast.