Something about...we were this big group of friends, it seemed like, maybe going on a road trip together, on a school bus that we owned. We got off at a convenience store for snacks at one point.

But there was also a home base, which seemed to be by a river and maybe a waterfall. There was some swimming around we could do.

People were getting infected with something that gave them super powers, like flight, but also turned them kind of evil, and maybe a little green.

The infection itself seemed sentient. Like it would talk to you while you were swimming and make it seem like a really good idea to let it in.

Once we realized what was happening we started taking all these precautions to not spread it. And also we were tying to figure out how to cure it, though towards the end it seemed like maybe it could clear up on its own if you just kept the person isolated long enough.