Rhinos are being poached from a Private Game Reserve and Jack Delaney and his team are called in to put a stop to this blight. From the office of the owners of the Big 5 Games Reserve the non-stop action moves to the bushveldt of the Game reserve itself. Crocodile and hippo infested rivers become potential murder weapons as a Game Ranger is kidnapped and murder too rears its ugly head. The mob are ruthless in their attempts to take over control of the Private Game Reserve so that they can use it as a staging post for their smuggling and poaching activities, and the so battle for control comes to a head in the dark of night in and amongst crocodiles and hippos in a river bed.