Well, basically its like catch but with a volleyball net and you have to play in your socks, no shoes. One person throws the ball over the net, a person on the other team catches it. If you don't catch it or you drop it, or whoever's fault it is that the ball didn't get caught, they're out. You keep playing until one team has everybody out. That team loses. If you get the ball, you throw it back over the net, anywhere in the volleyball court. You can move around to catch it, but when you do you have to stay where you are. If you step out of the court, you're out. Get it?