(BBC Scotland children's drama series, 1975)

A young Scottish lad, Alasdair Cameron, gets mixed up in espionage when he moves to the Isle of Skye.
Opens in London with two AEC Routemasters being passed by a Duple coach:

In Glasgow this Western Scottish Bristol Lodekka FLF draws up to take on passengers. Just visible in the distance is a Glasgow Leyland Atlantean:

On Skye, Alasdair boards a bus at Somerled Square in Portree. It's Highland Omnibuses CD71 (HGA984D), a 1966 Bedford VAS1 with Duple Midland body, which was new as David MacBrayne 211:


Here the mail compartment at the back is clearly seen; this was removed and the bus reseated when it was acquired for the Mountain Goat service in the Lake District:

….and of course there's the scenery: