Cabin Pressure is set in the wing and a prayer world of a tiny, one-plane charter airline, staffed by two pilots - one on his way down, and one who was never up to start with. Whether flying a cat to Abu Dhabi, dealing with a nervous bassoonist, hunting for a cleverly-hidden lemon or attempting to celebrate Christmas in seven minutes, no job is too small, but many, many jobs are too difficult. Carolyn Knapp-Shappey, MJN Air's formidable boss, has employed two of the very cheapest pilots money can buy: Captain Martin Crieff, who's always wanted to fly and won't let a little thing like lack of ability stop him, and First Officer Douglas Richardson, smooth-voiced old sky-god and eternal schemer. Passenger service is provided by the relentlessly cheery Arthur.