Jennifer and Jamie leap from a helicopter to find themselves in the centre of North America — Winnipeg, Manitoba. They get a lesson in curling from 15-year-old Elisabeth Peters, and then get whipped up with the weather at the Prairie Storm Prediction Centre. Canada's central province of Manitoba often gets battered by 200-kilometre-an-hour (124-mile-an-hour) winds, thunderstorms and, sometimes, tornadoes. Our adventurers learn the importance of predicting these storms before they happen. Then, they head north of Winnipeg to Stony Mountain where they uncover fossils from a 440-million-year-old sea. Curling rocks, fossil rocks and Winnipeg rocks on this week's episode of CG Kids!