本片出场的功夫片老明星相当多，主要就是夺宝的故事，大家为寻宝各怀目的走到一起，最后宝物于磨坊中找到后一场大混战开始了，最后一幕很精彩，至少7、8人分各自为战打成一团为抢宝物。

Twenty years ago at the infamous Redwood Farm, the owner went mad and killed his family and himself. Shrouded in urban legend ever since, a stranger obsessed with the unsolved Redwood murders convinces a group of bereaved family members to venture into the wilderness in the hope of proving the existence of the notorious burlap bag-masked maniac. Their quest for truth sees a sinister turn of events, as the hunters become the hunted and a blood-soaked fight for survival ensues when they find that the sinister tales told of the axe-wielding psycho farmer are very real indeed.

缉毒总督察李振邦（张家辉 饰）和卧底警员江铭（陈伟霆 饰）秘密执行追捕毒贩计划，无奈遭遇险境，江铭被迫游走黑白边缘，逐渐失控。为坚守底线，昔日队友互生杀意。猜忌、愤怒、疯狂、失望……全员丧失理智，濒临崩溃边缘！

在超人警備隊阿島隊員的故鄉，有市民目睹一條古老的村在剎那間出現，又在瞬間突然消失了……根据研究，有可能是外星人運用「得奇粒子」的能量，令時空產生變化，把已成歷史的老村莊重現眼前，產生時光倒流的現象……村中一位老伯的手掌上，有幾度神奇的貝殼傷痕，時光倒流，把這位老伯帶回歷史之中，揭開了一幕幕感人的往事……故事中男主角背棄盟誓，一去不返，現在是女主角報復的時候了。到底外星人跟這個故事有何關係？七星俠又如何對外星人？