Teenage Zombies

Are they going water skiing or are they going horseback riding? Are they going to be zombies or aren't they? I love these movies. The acting is so stiff. The characters deliver lines and then wait a second or two. The dialog is so pointless that it really doesn't matter. There's this huge island in a lake with a hugre research facility on it. But the people in the town don't seem to know it's there. Still a couple of kids can take a little rowboat with a ten horse and make it to the island. The research that is being done concerns a kind of nerve gas that will turn all Americans into blathering idiots (it's probably too late for that anyway). There's a gorilla running around, a couple of boring spies, and a kind of dragon lady scientist who locks the kids up for future research. The kids have the usual silly nicknames. The sheriff is on the take, so he won't help. My favorite scene is the last minute. I won't spoil it, but it's priceless.