Heathrow's resident press men Steve Meller and Russell Clisby rub shoulders with Kate Winslet and David Bowie. Paramedics Paul Schofield and Gerard Robinson help out a truck driver whose vehicle has been involved in an unusual accident with a passing aeroplane.

While Anita Newcourt prepares for a visit by China's president, immigration officers Eric Day and Caroline Acheson take an interest in an Algerian marathon runner.

Customer services manager Karen tackles a life-or-death situation; shopping consultant Corinne tries to advise the Chelsea football team; and immigration officers Eric and Caroline challenge a group of tourists who are unsure of where they are in the world.