What happened to the scene shown before the season?

I think its a fake from a film Terry did called Harsh Realm. Even his accents different but its kinda convincing :)

당신 can always identify 로스트 from the soundtrack. Most musical themes from the OST feature a I-III chord sequence (i.e. the root of the first chord descends a semitone to become the fifth of the third chord). It's sort of the unifying Wagnerian leitmotif of Lost. The clip was quite convincing though with all the mentions of fences and 'protecting my peope'.