It's Winter 2019, and the airport is having its busiest year to date as they expect 81 million visitors to use the facility.

Episode 1 of 12

Documentary series looking at life behind the scenes at the UK's biggest airport.

Heathrow: Britain's Busiest Airport

Series 6

Series 7

We're back at Britain's Busiest Airport with the familiar face of airside officer Ian, who has a close shave out on the runway..

Episode 2 of 12

It's a day like no other, with one octogenarian forcing herself into the country under the watchful eye of Passenger Experience Guru Demi.

Episode 3 of 12

Buckle up as Heathrow's Heroes are dealing with the UK's worst winter storms while inside the terminal, there's a bad smell in immigration and an emergency fire.

Episode 4 of 12

Border Force Kat decides whether to allow a holiday-maker arriving with little money in and a confusing story into the UK.

Episode 5 of 12

This time at Heathrow we're in the coloured lanes of customs and excise, rummaging through passengers' carry on, on the lookout for secret stashes.

Episode 6 of 12

It's all upgrades and upper class at Heathrow this time. Virgin's clubhouse manager Holly showers passengers with her VIP treatment Valentine-style.

Episode 7 of 12

At Britain's Busiest Border, officers Kat and Tracy help a student from India who's arrived with no fixed abode, and an exuberant new ambassador is welcomed.

Episode 8 of 12

At Heathrow's Terminal Four, new airline on the block Vietnam Airlines, are battling baggage woes in the lead up to the busy holiday period.

Episode 9 of 12

It's all smells at Heathrow's Terminal 3 with a new restaurant, and Border Force Dog Jessie sniffing out thousands of pounds.

Episode 10 of 12

Can you just pick up someone else's boarding card and take a trip around the world? This episode answers that question. Plus, plane-spotters await a rare sight.

Episode 11 of 12

In the last episode of the current series, there's something smelly in Cargo that Border Force have to get to the bottom of.

Heathrow: Britain's Busiest Airport

Episode 1 of 12

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