Would you like to go on a treasure hunt? Here's one with a difference - A barrel of money, collected at a village fete to raise money to help buy a Spitfire aircraft, has been lost in the river. Rival gangs compete with each other, and the authorities, to recover it. Three of the gangs are composed of children, but a fourth is made up of adult gangsters. A school boy, recently evacuated from a bombed-out London orphanage, becomes involved because of his love for one of the village girls and a promise he has made to her. He lives with a pious spinster aunt, a strict church-goer, who disapproves of his chapel-going girlfriend. Who can get to the barrel first? Is the hero's promise to his girlfriend fulfilled? Join in this wartime treasure hunt where air-raids, rationing, and a shot-down German bomber, add excitement to a fast-moving plot.