Claire returns on island to save Jin from Aldo & Justin

Back in the jungle, Jin stops for water and gets ambushed by Aldo and Justin, who aren't too happy about Kate's escape. Aldo, who quickly became as obnoxious as Pickett, suggests that they should kill him, but Justin objects saying "he's one of them," possibly referring to a candidate.

Jin tries to make an escape, but gets caught in a bear trap. As Aldo catches up to him and aims his gun, Claire shows up shooting Aldo twice and then Justin once. Jin looks up and notices it is claire. She looks back at him and looks bewildered.

So where has Claire been all of this time? Why has she taken to setting traps like Danielle Rousseau? Is she really claimed like Dogen says she is? I guess we'll find out soon enough.