Reknowned international thief Lupin III (known as 'Wolf' in the English dub) comes to the small European duchy of Cagliostro to investigate some excellently-forged money and stumbles across a national conspiracy going back some hundreds of years. Lupin and his friends must rescue the beautiful Clarice from the hands of the evil Count Cagliostro and solve the mystery of a hidden treasure dating back to the 15th century.