The film charts the fortunes of two women who loved each other as sisters, but whose paths diverge when the Revolution brings an end to their old way of life in the brothel.
Five young girls in a remote mountain village each find themselves forced into unhappy marriages. Together, they find solace in an old legend, that a girl may hang herself before marriage and retain her purity, her soul turning into a white bird and soaring to the heavenly garden, where there is only beauty and peace.
It is a story about the Chinese police who intelligently and bravely fight with the cooperation of the factory's Party Committee and the masses, against the spies, who steal the navy's equipment "Hunting No.99".
With the fishermen's life on the southeastern coast in the early 1960s as its background, the film depicts a group of militia women who work both as fisher women and fighters defending their homes and the motherland.
