Fridge / Babylon Berlin

• When it's discovered that the gold in the train car is coal painted gold, someone tosses a bar at the train car, causing it to disintegrate in a black cloud and leave a gold-colored streak on the side of the car. On the first watch, it looks like the gold paint from the bar has smeared onto the train car, but later it's revealed that the car itself is gold, so the gold streak is actually where the black paint had been stripped off by the impact.