Heathrow: Britain's Busiest Airport

Spring is about to be sprung and Heathrow is readying itself for a flurry of passengers.

Heathrow is revving up for passengers from all over the globe.

This episode goes behind the scenes of the test and trace process.

With the new regulations for travel in place, the Aviation police enforce the rules.

An inbound passenger has an entourage of armed officers waiting for him.

Heathrow welcomes the President of the United States.

Heathrow celebrates the re-opening of Terminal 3 after 15 months.

Heathrow reopens the last of its closed terminals - Terminal 4.

Virgin's clubhouse manager Holly showers passengers with her VIP treatment.

Officers Kat and Tracy help a student from India who's arrived with no fixed abode.

New airline on the terminal Vietnam Airlines battle baggage woes.

A new restaurant opens at Heathrow's Terminal 3.