Alright. I'm back with a couple more
Lighthouse:
Jack has a flash-sideways to himself this time. In this universe, he had an appendectomy at an early age, and he has a son. His relationship with his son, big surprise, is strained. They make up, eventually, of course. Can't have our heroes going around being bad parents, can we? I mean it's not like Kate abandoned....oh wait. And Michael never...heh, um..... Well, at least Sun didn't leave......um, never mind.

Man, the characters on Lost are all really lousy parents. :lol
Now we move on to island. Jin has a really really nasty injury that they insist on showing us closeups of over and over.

Looks like three years alone have done a real number on Claire. She's batshit crazy, now. She thinks that the Others have her baby, and even after Jin tells her that they don't, she still executes a guy in cold blood. She's also friends with the Man in Black. I guess him posing as her father and gaining her trust would do that. Claire also tells Jin that if Kate really had her baby she would kill her (please, please, please!)
Hurley gets sent on a new quest by Jacob. It's nice to see him step up and take charge. He's not typically the person you would think of as a leader, but he's always had it in him. While Jack may be the obvious candidate for Jacob's job, I wouldn't count Hurley out for it either. Hurley has to take Jack, and only Jack, to a lighthouse. I really wanted to slap Jack when he tried to invite Kate along. Thankfully she showed some rare sense and declined.
So, what's in the lighthouse? Pretty much the same stuff that we found out in the last episode. The only difference is Jack and Hurley finding out about it this time. There is a bit more number stuff, how they correspond to degrees on the wheel. It would seem that turning the wheel a certain way allows you to look at another place in the world. Is this how Jacob selected his candidates? Is there little more significance than they were the people that would appear in the mirror? This still doesn't explain where the heck the numbers came from and why they keep popping up. Jack puts an end to any further use of the mirror by smashing it to bits. Well, so much for that.
Sundown:
Sayid is dead. Whatever is inhabiting his body now is not Sayid. That much is clear. He's sent out of the temple by Dogen to talk to Smocke. He's also given a magical dagger (

) that should kill him. It doesn't work, (good) and Sayid is turned to the dark side. He claims all he wants is the woman he loved back. Now, is he talking about Nadiya, or Shannon? Either way, it looks like the darkness has taken him. What a tough life this guy has led. He's done horrible things that he is truly sorry for. Yet, every time he tries to redeem himself, he gets pulled further and further into the black. Is there still any hope for him?
Even in the flash-sideways universe he doesn't have any luck. He's still not with Nadiya, and he's still being asked to do evil. He resists at first, but must relent when his family comes under attack. It was pretty cool seeing Keamy as the loan shark. He was an enjoyable character in season four, simply for how freaking evil he was. Well, Sayid does what he does best, and ends every person in that room. He does find Jin in the pantry as well. I guess we'll have to wait until Jin's flash-sideways to find out the story behind that one.
All hell breaks loose in the temple once Sayid returns with his message. Most of the people leave to join Smocke's party. There's a few holdouts, such as Dogen and the John Lennon look-alike. There's also a bit of an attempt to flesh out Dogen's character. It seems rather pointless though, as Sayid goes crazy and kills him. Then he kills John Lennon, too. Smokey is then free to infiltrate the temple. They really haven't been shy of showing what Smokey can do lately. It makes for some great looking action. In the end, Miles ends up escaping with Illana's crew, while Kate ends up stuck with Smocke's. Clearly that's not where she wants to be, but it would seem Smocke will tolerate her for the moment.
Pretty good couple of episodes. I won't miss the temple, really. It was a little underwhelming what was there. I felt like, after seasons of buildup, that the reveal should have been bigger.