Scientists fly into the bush to track a deadly disease, a snake hunt across the airport ends in a face-off with a spitting cobra, and an emergency crew rushes to clear a major runway.

A wildlife invasion on the runways delays a flight into the wilderness, a massive four-engine airliner attempts a night landing at a bush airport in a power outage, cargo handlers rush to deliver half a ton of fresh flowers in time for Mother's Day, and a patrol plane discovers fires raging through Kruger National Park.