A school for wayward girls, run by a friend of Steve McGarrett's, needs $15,000 for overdue taxes or the school will be closed. Former counterfeiter Willie McFee, a flower breeder who also is a general handyman and gardener for the school, decides to make one last print run with a set of near-perfect $20 plates he once crafted - but a mainland crime boss gets word that Willie's plates have surfaced, meaning that he can try to steal them for himself.