Part of “Old Info And News”
My guess is that the island “move” put Locke and Co. into the proximity of—or at least the neighborhood of—some hostile folk, and that Locke had to leave the island to urge the others to come back to set things right. Also, even though you had a few old unfamiliars on the island, there still could be factional violence between the now Locke-led others (who are really “Others” now, right? They don’t age? Why do they need a leader?) and the three new castaways, plus Juliet and Sawyer (he really does get all the good women, doesn’t he, Jack?).
So, yeah, I love this show.
4x13 and 4x14 - Jacket - Juliet Burke - Lost - Old Info And News - Projects - Reviews - Sawyer - Suliet