Determined to gatecrash her ex-lover’s funeral on glamorous French hideaway Île de Ré, former Hollywood siren Helen escapes her London retirement home with help of repressed English housewife Priscilla and they hit the road together in a race to get to the funeral on time.

A true-life drama, centering on British explorer Col. Percival Fawcett, who disappeared while searching for a mysterious city in the Amazon in the 1920s.