Kate and her brother Joel have gathered their five best friends for a scenic RV road trip to their high-school reunion. But their cross-country adventure is about to take an unexpected turn for the worst when an ancient curse takes wing by way of a massive creature. It's called the Simuroc, and this gigantic bird of prey has found the perfect, helpless quarry in Kate and company. Stranded in the backwoods of the predator's territory, there's little chance for escape.