Easily the worst episode of the whole series. The on island activity is incredibly cheesy (one part looks like it is out of 300) and there an incredible amount of plot holes.
Literally nothing is explained in this episode and it seems that the writers couldn't explain such things as the island moving and the numbers and Walt, who played a central part in the first 2 series makes no appearance at all.
Parts of the episode are okay, such as when in the flash-sideways, they start to remember, but this is ruined by what i consider to be a pointless ending filled with many plot holes
Literally nothing is explained in this episode and it seems that the writers couldn't explain such things as the island moving and the numbers and Walt, who played a central part in the first 2 series makes no appearance at all.
Parts of the episode are okay, such as when in the flash-sideways, they start to remember, but this is ruined by what i consider to be a pointless ending filled with many plot holes