Britain's Busiest Airport - Heathrow S07E04 - Episode 4

Dame Julie Walters narrates as, while COVID travel restrictions begin to ease, cameras continue to explore behind the scenes at the massive transport hub, giving audiences an exclusive look at how one of the world's most popular airports handles a worldwide pandemic.

Filmed over the last 18 months, with passengers trickling back into an airport dealing with new and ever-changing challenges, it's still business as usual at Britain's busiest airport.