Britain's Busiest Airport: Heathrow (2015)

S5E4 Episode 4

As an endangered parrot arrives at Heathrow, a polar vortex looms overhead. Officers Dave and Terry are on the lookout for a fugitive who has vanished aboard an aircraft. Meanwhile, Ian, working airside, teams up with the rule-abiding Steve to contend with heavy snowfall, striving to keep the runways operational amidst the blizzard conditions.