Source: ABC Medianet
"In the season premiere episode, 'The Beginning of the End,' feeling that their rescue is close at hand, the survivors don't know whether to believe Charlie's final message that the people claiming to liberate them are not who they seem to be.
The band of friends, family, enemies and strangers must continue to work together against the cruel weather and harsh terrain if they want to stay alive. But as they have discovered during their 90-plus days on the island, danger and mystery loom behind every corner, and those they thought could be trusted may turn against them. Even heroes have secrets."