Stephanie Cole, Benedict Cumberbatch & Roger Allam star in the fourth series of the hit sitcom about the tiny charter airline for whom no job is too small, but many, many jobs are too difficult. By John Finnemore ( The News Quiz , 'Mitchell & Webb ) Run by the forbidding divorcee Carolyn Knapp-Shappey (an unfortunate marriage, namewise, but in Carolyn s opinion, marginally better than Carolyn Shappey-Knapp), her two pilots are the smooth, experienced and almost-certainly-fired-by-a-big-airline-for-all-round naughtiness Douglas, and struggling almost-competent pilot and sweaty man Martin. All-round help is provided by Carolyn‘s near-idiot son, Arthur...