Hot air balloonists are adventurers: they never know where the wind will take them or where they will land. They spare no effort to discover the world from above in their balloons. Phil and Allie Dunnington are among the best balloon pilots in the world. The series “High Flights” accompanies them on their journeys to fascinating landscapes around the world. Their unique way of experiencing the world brings them breathtaking views, dramatic landings, foreign cultures, and unexpected encounters. Every year, balloonists Phil and Allie Dunnington meet up with other hot air balloonists in the Alps. The highlights of the winter ballooning circus are the festivals in Tannheim (Austria) and Chateau D'Oex (Switzerland). They are the occasion for spectacular flights over the mighty Alpine massif.