After the success of their previous gold-hunting escapades, Faiza, Jack and Wade are looking forward to a quieter summer. But in the shadows, someone is keen to make sure their summer holidays are their last. After obtaining some irresistible clues, they are drawn into another thrilling hunt and dangerous chase. Following the trail of mysteries both old and new, they venture into even more death-defying adventures, both above and below ground. Will they survive long enough to find the elusive gold?