In flash forward, we see Sayid on a gorgeous, seaside golf course. He meets a fellow golfer, who says Sayid looks familiar to him. Sayid says this is because he's one of the Oceanic 6--his picture has been spread across the media. The other golfer seems very upset by this and doesn't want to continue golfing. As the golfer leaves, Sayid calls him "Mr. Avellino." Avellino turns back around and Sayid shoots him dead.
Later we see Sayid in Berlin meeting up--seemingly by chance--with a woman who is an assistant to an esteemed economist. They strike up a romance, but it becomes clear that Sayid is trying to get to the economist and kill him. The woman, Elsa, shoots him. She apparently knows what Sayid is up to, too. But Sayid shoots back, killing her.
Wounded in the shoulder, Sayid goes to what looks like an animal hospital/shelter or laboratory that's closed for the night. Someone, we don't see his face, stitches Sayid up--chastising him for thinking with his heart, not his head. We see that this person is Ben. He's given Sayid a list of people to kill. Killing these people will help Sayid's friends, Ben says.
Back in island time, the helicopter crew agrees to bring the survivors off the island if they retrieve Charlotte from Locke. Sayid, Kate and Miles go to the Others' barracks to do this, but are captured by Locke and his crew. Sayid strikes a bargain, though, he gives Locke Miles and brings Charlotte back to the helicopter.
Frank, the helicopter pilot, reluctantly agrees to bring a couple of the survivors with him to the waiting freighter--there's little fuel left in the chopper and he can only take a light load. Sayid and Desmond go along.
Questions/clues/observations:
* Why has Sayid become an assassin for Ben? Who are the people Ben is after? Are they associated with Matthew Abbaddon and/or the Dharma Initiative?
* Back on the island, Sayid finds a secret room in Ben's home. It's full of clothing. In the the desk, there's a drawerful of currency from different countries and fake passports, each bearing Ben's photograph. Looks like Mr. Born on the Island is a traveling man. Is he some sort of spy? What's he up to?
* On the island, Daniel the physicist asks the freighter crew to shoot over a rocket payload to the island. It launches but doesn't land until 31 minutes later. There's some freaky time anomaly between the island and the rest of the world.
* The bracelet Sayid spots on Naomi's wrist looks the same as the one Elsa is wearing. It seems this means they work for the same organization. When Sayid first sees the bracelet, it seems like he recognizes it somehow.
* Naomi's bracelet reads: "N. I'll always be with you. R.G." Who is R.G.? Could the R stand for "Richard," Ben's Other pal?
* Ben and Sayid refer to a list--presumably a "to kill" list. What's up with Ben and his lists? Back on the island, the Others have a list of "good" people among the survivors that, apparently, Jacob provided.
* Sayid is one of the Oceanic 6. So we've got him, Hurley, Jack and Kate (although, I'm still not convinced she's officially among them, being a fugitive. Wouldn't she be in jail if the world knew she was back?). Who are the rest?
* Locke goes to where he thinks he'll find Jacob's cabin, but it's not there? Earlier, when Hurley saw it, the cabin seems to be moving around, appearing in several different spots and disappearing. What explains this?
* Does the island move around in time and dimension just like Jacob's cabin?
* Confronted by Desmond, Frank reveals he isn't working for Penelope. He doesn't even know her. Frank, Miles and the rest seems to be in the dark about a lot of the details of what's going on. They just know they're on the island to get Ben.
Also see:
Lost Season 4 Episode Guide
The Best Lost Sites on the Web
Lost: What we STILL don't know
lots of DVD box sets, including the 
