"Justice!" The confusing nature of the plot in the beginning is indicative of the original DBZ movies. They often lurch from one plot point to another, with very little connecting tissue. Lord Slug and Return Of Cooler are the worst offenders. Team Four Star tried their best to clean it up, but there's little they can do. Dr. Wheelo is indeed just as evil as Dr. Kochin in the original, but clearly they thought it more interesting to make Dr. Wheelo sympathetic. I honestly think that this is a huge improvement.