Prince Bongawah goes missing from a camp near Peterswood. His uncle is trying to get control of his country and is trying to remove the heir to the throne. The Five Find-Outers realise that to get away, the Prince had to hide in the bottom of a pram, but the plan is even more cunning. In fact the Prince was kidnapped before he even arrived at the camp, and an accomplice took his place. In an exciting conclusion, they trace the Prince to a remote farmhouse, just as his captors are about to take him away by helicopter.