A young woman running a wildlife sanctuary in the Australian outback is in for trouble when she is confronted by three kangaroo hunters. Bored with killing kangaroos, they decide to kill the animals in the sanctuary, and when they see how attractive the owner is, they decide to have a little "fun" with her, too. Turns out that they may get a bit more "fun" than they bargained for.
A body is found floating in the Torres Strait and pearler Ted King is asked to investigate. He discovers the murder is connected to a people smuggling ring and involves one of his men, Yusep. He is helped by Peter Merriman, the playboy owner of King's company who romances King's daughter Rusty. Yusep kidnaps Rusty but Merriman and King rescue her.
After a highly successful raid on Singapore Harbour, soldiers of Z Special Unit lead a new expedition in Singapore, with disastrous results.
