the special is just going to be an hour-and-a-half long deduction, with sherlock explaining ALL THE THINGS right there on the tarmac

every now and then we’ll cut back to john and mary, who tried to pay attention for the first half hour but then got really hungry and started to raid the plane for snacks

"go on, sherlock, we’re still listening"

"do they have any more of those little packets of peanuts?"