Think this was a BBC show, definitely British.
Can’t for the life of me remember the title, but it’s fairly recent - within the last ten years definitely, probably within the last five.
The premise was some ordinary schmucks were put into positions of power during various emergencies in a COBRA government type set-up. I remember a few of the scenarios; one of them being a plane full of American civilians heading on an unscheduled flight path into London. They didn’t shoot it down and it flew into the Palace of Westminister, the experts on hand then called them idiots. Another was a flooding in the London Underground, they had to seal off bits of it and doom passengers to try and save others. The only other I can remember is severe flooding (I think) in a max security prison, the schmucks had to decide what to do - they released the prisoners and made a piss-poor announcement about it to the public. The experts called them idiots again.
Any idea what I’m thinking of? My Google-Fu is really failing me here.