Angela Rippon, Gloria Hunniford and Julia Somerville investigate holiday disasters that can occur before people have even reached their destination - and that are totally outside their control. Among the stories is that of the holidaymakers left thousands of pounds out of pocket after being denied boarding thanks to an issue only the airline saw as a problem. Plus why lost luggage could be close to becoming a thing of the past, and the airport transfer company that left passengers stranded without the cars they had booked and paid for. And travel expert Simon Calder has tips on visiting increasingly affordable and accessible Shanghai.