Jack Shepherd, to me, is the single most annoying character on the show. His shows of bravado just make him come off like an idiot. This episode solidified it.
Basically, Jacob (who in the words of Hurley, is like Obi Wan Kenobi) tells Hurley that he has a task for him to do and he has to get ready for some random person to get on the island. My first theory on who this guy is is that it's Desmond, but I could be wrong. This will occur frequently during the course of viewing this show.
I'm not going to waste any time discussing the off Island stuff with Jack and his son, although I am wondering who the mom is. Doc Jensen theorized that it could be Juliet (remember they had a thing before, either season 3 or 4), but I don't think Blondie is the mom. Her heart belongs to Sawyer. (Cue collective awwwwwwwwww)
Another Juliet related tangent: Jack's mom told him that he removed his appendix when he was seven or eight. I call bubkis! Didn't Jack remove his appendix on the Island? And didn't Dr. Burke (Juliet) do it for him? Continuity people. It's big. (That's what she said)
Anyways, back to Jack and Hurley's awesome adventure.
Another idiotic move by Jack was when he tried to invite Kate to the lighthouse. What the fuck was that? Jacob wanted you and Hurley, and only you and Hurley. Jacob hates girls, apparently. Then Hurley asks Jack why he came back to the island, and Jack responds by saying he thought the place could fix him. Jack, fixer of all things, is broken. How ironic. (Fixer would prove to be ironic later as well.)
So they get to the lighthouse and Jack breaks the door open. They go up and find a dial with 360 degrees. The dial has the numbers of all the candidates as well as some new names, some crossed out and some not. Jack and Hurley turn the dial to get to 108 as per Jacob's instructions, but they get to 23 and Jack freaks out. He demands to see Jacob and when Hurley tells him that it doesn't work that way, Jack destroys the lighthouse. I mean he seriously goes ape shit.
Here's a thought Jack. Maybe follow the instructions next time? Who knows what would have happened had you let the dial go to 108, where the mysterious name of Wallace is written.
By the way, who the hell is Wallace?
UPDATE: You gotta check out this blog. Amazing!!!