This episode centres on Walt and Michael, with flashbacks of how Walt ended up not knowing his father, and living in Australia. As well as how Michael regained custody. We also see more hints that Walt is, as the episode title suggests, special.
But this show would want to start doing a little more than hinting.
I mean I do get that there are a whole load of characters and they all have their own backstories, but Lost is starting to drag. The problem, I think, is that every aspect of the story is arc-base. There is no resolution at all in any of the episodes, everything is focused on what happens next.