A chimpanzee awaiting a flight is entertained by animal officer Stuart in the penultimate episode. Meanwhile, Maria copes with hot, hungry and harassed passengers, and paramedic Jane faces a life-threatening emergency.

Undercover police officers track down a woman who has paid £500 to get her daughter into the country.John Cull's plane is hijacked for an anti-terrorist exercise and the paramedics help an eight-year-old desperate to fly.

The arrivals of Kylie Minogue and Tom Jones are expected as the fly-on-the-wall documentary series based at London's Heathrow airport returns for a new ten-part run.