Ispwich aired on BBC Radio 4 on 31st July 2009 and starred:
- Roger Allam as Douglas
- Benedict Cumberbatch as Martin
- Stephanie Cole as Carolyn
- John Finnemore as Arthur
- Phillip Davis as Mr. Sargent
- Alex MacQueen as Dr. Davis
The episode begins with Martin and Douglas finishing the cheese tray, before handing it to Arthur. It reminds him on a documentary he saw last night on dogs. There's alpha dogs, beta dogs and amigo dogs. He means Omega dogs. He lets slip that there's Camembert on the tray, but Carolyn takes it. Douglas is annoyed and confronts Carolyn about it, but she rebuffs him and tells them that they're doing an SEP course in Ispwich on Monday. Douglas tries to get out of it but is reminded that the CAA will take his license off him if he doesn't go.
In the car, Martin and Arthur are cramming for the course. Martin is trying to teach Arthur the correct answers, but only Arthur has ever needed mnemonic for aft and fore. When they get to the testing center, they meet Mr. Sargent and Dr. Duncan, who thought there were going to be 400 of them, not just four. Martin and Douglas go in for the pilot's course and start arguing over who is worse than the other. They go through a 5 step plan to combat this,
After this, they do the swimming pool safety lesson for water landings. Everyone jumps in except Douglas. who realises that they're in water, no risk of fire, so just steps onto the life raft, much to the annoyance of Mr. Sargent. After everyone's dried off, they go and eat lunch and make their way through the quiches, Arthur himself having eaten 7 of them. After lunch and a small test, they move onto the smoke filled cabin drill. They fail it after they've all held onto each other's belts and have been playing ring-around-the-rosie in the cabin. Martin got dizzy and passed out and then Arthur removed his smoke hood and became smoke filled.
They realise they've failed, but are given a seconds chance when they realise that they need 19 passengers for a steward, but only have 16 seats, so by getting rid of Arthur, they are given a second chance, pass the smoke filled cabin test and then the episode ends with Mr. Sargent forcing Douglas to jump into the swimming pool in uniform.