Kate Humble is off on yet another adventure, and this time she's shacking up with some Inca descendants in the mountains of southern Peru. They've built their lives around alpaca herding, an ancient tradition that can be traced all the way back to their early ancestors, and Kate wants in on the action. She'll be immersing herself in their everyday life, and discovering just how hard life is for these strong-willed people. It takes some steel to keep this tradition alive.