Natalie and Leonard comfort a schoolboy who has fallen metres out of a tree and landed on his head. Cam fights to save a father in cardiac arrest. Matt and the flight crew race to a fellow paramedic bitten by a deadly brown snake, but reaching her in a remote location proves to be almost impossible. And Mike and Eamon get the call to support a young woman with a debilitating yet all-too-common condition, endometriosis.