It's happened to you--you need to do a story on a topic that's completely outside of your experience. Surely there's someone more qualified? The answer is usually NO.
Now what? Now you have to come up to speed on that topic ASAP. In this mini-course I'll show you the strategies and tactics I use to learn a domain as rapidly as possible. You won't be an expert, but you'll have a bunch of tips and methods to get to competence quickly. I can't make you pass the PhD exam in quantum physics, but a little knowledge about learning and Google search strategies can get to through that story.