Nitroglycerine

Lucky Luke must ensure the safety of a nitroglycerin convoy. Two companies are competing to build the intercontinental railway. When one sends saboteurs to intercept the powder needed to blast tunnels through the mountains, the other calls on Lucky Luke to protect a last-chance convoy. The problem is that this time, no powder is loaded onto the train – it's nitroglycerin! As if that weren't enough, the saboteurs are still nearby, and the Daltons are convinced that the train is full of gold!.