Michael Portillo sets off on a captivating journey of self-exploration across the stunning Pyrenees, a majestic mountain range between France and Spain. In this four-part series, he navigates a segment of the 270-mile trail, starting from the Atlantic coast's Bay of Biscay and culminating at the Mediterranean shores. Each episode unfolds as a unique adventure, revealing the breathtaking landscapes, rich culture, and personal insights that make this trek unforgettable. Portillo's enthusiasm and curiosity shine through, inviting viewers along for a remarkable experience filled with discovery and wonder.