请为一部电影编写一个剧本概要。
Title: The Lost Treasure

Synopsis: A group of adventurers set out on a quest to find a lost treasure, said to be worth millions. Along the way, they face various challenges including treacherous terrain, fierce wildlife and rogue competitors. They also discover that one of their own is secretly working against them. As they get closer to the treasure, tensions rise and betrayals are revealed, leading to a final showdown where only one can emerge victorious. In the end, they realize that sometimes the real treasure is not what they were searching for all along.