Fearless juvenile Jack, his 'daft-as-a-brush' brother Simple Simon, and his long suffering mother Dame Trott live in a tiny cottage in the shadow of the terrible giant Blunderbore. With the rent overdue they have no choice but to sell their beloved pet cow Daisy. After tricking the Trotts into selling her for a bag of worthless beans, the villainous henchman Fleshcreep kidnaps the Princess for the giant's supper... Could Jack be the hero the village has been waiting for? Will he be able to rescue Daisy and Princess Jill in time? Perhaps those beans aren't as worthless as they seemed!