Really a shame, poor direction ruined what could have been a far better film. Solid, believable performances from a very young Nicole Kidman and a fine martial-arts actor, Tom Jennings, just aren't enough to save this. The screenplay didn't quite realize the basic concept of a bunch of older kids staying up all night to play Ninja war games in an abandoned power plant, much to the neglect of their school work. It was, to say the least, a bit muddled. There were some good futuristic elements thrown in, but not convincingly enough to play true. As to what year of school these "kids" were in, it's hard to guess. They're clearly too mature for an American high school, but then again, it's an Australian movie, set in the future.
With better editing, this movie could have been a bit more watchable, but I suspect there just wasn't enough footage shot that the editor had much choice. Some sequences were reused in pointless mini-flashbacks that really didn't belong in the film. This makes me wonder if it wasn't being padded to play on television. And the director just didn't seem to be able to tell a story. He did frame the occasional dramatic picture, but not often enough to achieve the artsy effect I think he was going for. Besides, without being able to accomplish the basics, you should be careful with the frills.
However, it's a treat to see the young Kidman. Despite the bad direction, muddled script, all the martial arts sequences executed in the dark, and her thick Australian accent, you can see what everyone saw in her, even then. Tom Jennings wasn't bad either, seemed to show a lot of potential, but I wonder what happened to him. According to IMDB, he made one more movie in '88 and then dropped out of sight.
I wouldn't recommend you go out of your way to see this one, but it lapsed into the public domain and is available very cheaply from a number of sources. I can only think of two reasons to see this: 1) You're a die-hard Kidman fan who would watch ANYTHING if she was in it, or 2) You're lazy and dishonest and looking for an obscure script to recycle for a student film project.