It's mid-October, and after 18 months of travel restrictions, Jeremy arrives in Heathrow to find the airport decimated by Covid-19. Terminals are empty, shops are closed, and staff are starting to return from furlough.

As India resumes quarantine-free flights, Jeremy helps Virgin turnaround officer Claire as she prepares a Boeing 787 bound for Delhi. On board, Jeremy helps deep clean the aircraft before joining the flight team at the gate to hand out PPE and help calm the nerves of frazzled passengers struggling with passenger locator forms.

Next, Jeremy meets Virgin cabin crew member Becci, who is eager to start flying again following furlough. Jeremy joins her on her cabin crew retraining course, where she is put through her paces in drills including loss of cabin pressure and an emergency landing.

As Australia opens up, Jeremy meets the Australian residents desperate to return home, and there are emotional reunions in both Sydney and Heathrow.

It's late November, and rising passenger numbers mean that everyone at Heathrow needs to adapt to busier skies. Jeremy joins returning Aer Lingus captain Louise in the simulator as she manages a sudden engine malfunction and is forced to make an emergency landing. Training successfully completed, Jeremy joins Louise in the cockpit of one of Aer Lingus's newest and most sustainable aircraft, the A321 Neo, as they fly on the busy Dublin-Heathrow route.

In the NATS control tower, Jeremy finds out how air traffic controller Steph is acclimatising to increased plane traffic and tries his hand at ordering planes for take-off in the NATS simulator.

With restrictions easing, baggage service managers Nigel and Waj are responsible for ever greater numbers of bags on Heathrow's 10 miles of conveyor belts. Jeremy joins them on a busy shift as they help a passenger arriving from Afghanistan locate her bags.