Emily and Alexander travel to Switzerland, where the big gold heist has just taken place. But it is also the day when the "Best Swiss Chocolate" competition takes place. However, the gold thieves take the chocolate to coat the gold coins with it and take the gold out of the country as chocolate talers. Emily, Alexander and cousin Heidi follow the thieves up the Matterhorn and steal the gold and chocolate from them, allowing the competition to take place as planned after all.