The animated science fiction-adventure film Aero-Troopers concerns a boy who joins the title troupe in order to get revenge on Nemeclous, the entity that forced him away from his family. ~ Perry Seibert, Rovi
... but, it was very disappointing. There was no setup to the story (at least the first 35 minutes), just a kid living in a flying forest which gets destroyed - he survives and is picked up by the Aero-Troopers where he grows up and learns to be a trooper. There was no attempt to explain or develop the environment/world they live in (why live on a floating forest? Who are the enemies? And WHY are they the enemies? Who are the Aero-Troopers? Why is everything occurring in the sky? Is there land and water below? What happened to his parents? His family? Who were the people living in the forests which was destroyed?) I was left watching a story unfold where I had no background information. We watched about half of it before losing complete interest. None of us were able to figure out how a story could be told without having any story ... at least make it interesting so the audience wants to watch and see how the 'story' unfolds instead of being disinterested due to lack of information.