Weekdays at the Whiteside: Battle Royale
42 9th graders are sent to a deserted island. They are given a map, food, and various weapons. An explosive collar is fitted around their neck. If they break a rule, the collar explodes. Their mission: kill each other and be the last one standing. The last survivor is allowed to leave the island. If there is more than one survivor, the collars explode and kill them all.