We travel to San Diego, USA to visit the second-largest naval base in the country - home to the iconic WWII flying boat, affectionately known as 'Catalina PBY'.
It is the middle of South Africa's rainy season - and three intrepid aviators put a WWII flying boat through her paces, as they prepare for an arduous twelve-thousand mile journey up the African coast, across the Atlantic, up across Brazil and the Caribbean - and eventually home to the USA.
Luanda, Angola. Six degrees south of the equator. After a good night's sleep our intrepid crew travels through downtown Luanda to the airport, where they prepare for departure to Duala in Cameroon. This is real Africa - and the crew begins to doubt whether fuel and other facilities en route will prove to be reliable.
The aircraft becomes airborne on a heading for Belem, gateway to the Caribbean Islands - one of the most beautiful destinations in the world. The route flown takes viewers over the Amazon River system and the world-famous jungle, where the horrors of deforestation are witnessed first-hand.
Homeward bound - the final stretch on this epic adventure, as the team leave Tapachula on a heading for Los Mochas in Mexico. The spectacular scenery includes a view of an active volcano called 'Kalina', as they fly at high altitude in very cold conditions.