犯罪风潮正在席卷城市，哈里上尉和他的蹩脚助手已经对肆虐城市的威尔逊•海兹团伙无能为力。上峰不满，派来强援协助哈里，于是拉萨雷指挥官再次归来，上一集中表现出色的尼克和昔日的学员法克勒作为新鲜血液，加入了高塔（Bubba Smith 饰）、卡伦、泰克布雷、琼斯（Michael Winslow 饰）的五人小组，协助拉萨雷展开巡帧工作，但威尔逊一伙人似乎对警方的动向了若指掌，在幕后神秘人的指挥下应对有度。警方的巡侦和诱饵计划毫无收效，反被威尔逊等人四处作案抢得了主动。与此同时，被架空的哈里和市长谋划，用计将拉萨雷等人赶走。拉萨雷被栽赃陷害，与手下警员们一起被剥夺了职权，但英勇的警校毕业生们并未屈服，揭开了犯罪活动背后的房地产利益…
W.B.Yeats: The trees are in their autumn beauty, The woodlands paths are dry, Under the October twilight the water Mirrors a still sky; Upon the brimming water among the stones Are nine-and-fifty swans.
The nineteenth autumn has come upon me Since I first made my count; I saw, before I had well finished, All suddenly mount And scatter wheeling in great broken rings Upon their clamorous wings.
I have looked upon those brilliant creatures, And now my heart is sore. All's changed since I, hearing at twilight, The first time on this shore The bell-beat of their wings above my head, Trod with a lighter tread.
Unwearied still, lover by lover, They paddle in the cold Companionable streams or climb the air; Their hearts have not grown old; Passion or conquest, wander where they will, Attend upon them still.
But now they drift on the still water, Mysterious, beautiful; Among what rushes will they build, By what lake's edge or pool Delight men's eyes when I awake some day To find they have flown away?
The trees are in their autumn beauty,
The woodlands paths are dry,
Under the October twilight the water
Mirrors a still sky;
Upon the brimming water among the stones
Are nine-and-fifty swans.
The nineteenth autumn has come upon me
Since I first made my count;
I saw, before I had well finished,
All suddenly mount
And scatter wheeling in great broken rings
Upon their clamorous wings.
I have looked upon those brilliant creatures,
And now my heart is sore.
All's changed since I, hearing at twilight,
The first time on this shore
The bell-beat of their wings above my head,
Trod with a lighter tread.
Unwearied still, lover by lover,
They paddle in the cold
Companionable streams or climb the air;
Their hearts have not grown old;
Passion or conquest, wander where they will,
Attend upon them still.
But now they drift on the still water,
Mysterious, beautiful;
Among what rushes will they build,
By what lake's edge or pool
Delight men's eyes when I awake some day
To find they have flown away?