粗鲁蛮横的博贝克（金·科林斯 Kim Collins 饰）和女儿维多利亚（Amy Brassette 饰）参加钓鱼大赛，谁知到手的鱼儿却被一条白鲨吃掉。博贝克勃然大怒，竟然用炸药对付鲨鱼，结果父女引来了可怕的杀身之祸，连驾驶游艇的船长也无法幸免。次日，爱娃（Mackenzie Rosman 饰）、卡梅隆（Jaren Mitchell 饰）、米克（Shawn C. Phillips 饰）、布雷西（Dave Randolph-Mayhem Davis 饰）等几名年轻人来海边玩耍，可在欢乐之时一条全身散发荧光的鲨鱼向人们发起猛烈攻击。原来鲨鱼也有憎恶怨恨之心，昨晚的鲨鱼虽被博贝克炸死，但它的怨念使它化身为复仇的鬼鲨鱼，向所有人类展开报复。 　　而这一切的背后，又藏着不可告人的秘密……

Nine years after the events of GHOST SHARK Jack Broody is the mayor of Auckland, New Zealand, and former Lieutenant Commander Tony Palantine is down and out on the streets. The mayoral electoral campaign is underway and Broody is down in the polls, with newcomer Marco Guerra winning the hearts and votes of the public. But people start turning up dead all over the city, and it soon becomes clear that GHOST SHARK is back. Desperate not to repeat the mistakes from his former life, Broody calls in expert ghost shark hunter Tom Logan to defeat the undead beast once and for all. But Logan carries with him demons of his own. With the election fast approaching and Ghost Shark taking more souls by the day, can Broody and Logan save both the mayoralty and the city?