Just outside of Montreal, a vast industrial warehouse holds thousands of barrels of Canada's most valuable export: maple syrup. Each barrel weighs 1500 pounds and is worth nearly 20x more than crude oil. A single surveyor is making his routine inspection — climbing up on and around the barrels to make sure everything is up to snuff, when one barrel falls to the ground. Empty. It would not be the only one. A gang of sticky-fingered thieves managed to run away with $20 million of maple syrup.