In 1930's Boston, Montana Jones and his scholar cousin Alfred embark on a global treasure hunt to procure historical artifacts for museums. Guided by Professor Gerrit's recorded messages, the duo encounters Melissa, a polyglot journalist, who joins their adventures. Their nemesis, the eccentric Lord Zero, a wealthy art enthusiast and cunning thief, employs henchmen Slim and Slam to thwart their quests. Along the way, they face the enigmatic Dr. Nitro, a brilliant inventor of peculiar contraptions designed to aid in treasure hunting.