Bosko, who seems to be stereotypical (for the time) black man, starred in these early features. At times it becomes quite unsettling. In this one, he is a hobo in a box car. The train (which is really quite a clever animated character) loses the boxcar as it goes over a steep hill. The rest of the cartoon involves Bosko (and a cow) trying to save themselves as the train car zooms out of control. There are some interesting things, but most of them are repeats of previous cartoons. Overall, decent for the time.
