Britain's Busiest Airport: Heathrow
       
      Britain's Busiest Airport: Heathrow
      Episode 5 (6x5)
      
      : 
      Border Force Kat decides whether to allow a holiday-maker arriving with little money and a confusing story into the UK. Meanwhile in Terminal 3, meticulous Customer Service Agent Mr Sho is having issues with a 400-year-old Japanese tradition.