The series dealt with the everyday issues affecting both staff and pupils at Strathaird School, and in particular the title character, idealistic science teacher and housemaster Ian Craig (played by John Cairney).
The opening sequence showed Ian Craig driving over the Forth Road Bridge, which at the time was newly built and a Scottish cultural icon.
Almost all episodes are missing, except when indicated: With Luv from Rosie Patterson The Search A Wise Father Dougie (exists) Girl in a Thousand Three's Company Live Like a Man A Lower Deep Sticks and Stones Big Fall The Bike Time For Protest The Key to it All Tall, Fat and Ugly A Rough Passage The Expedition The Romantic Certain Standards Two Thousand a Year A Question of Biology Mates The Rubbing Rag Whose Pigeon?
The Golden Key to Knowledge Old Flame The Day Before School Early Days The Time Wasters (exists; recovered in 2014) Swimmer in a Shallow Cup The Trolls Surgery Period of Adjustment The Good Chemist Sons of McCall Nurinder What Made Sammy?
Fresh Off the Boat The Pirate Cut Pressures The Water Baby The Tinks Then There Were Nine There's Got to be a Fire Somewhere You Can Choose Your Friends Stevie The Day's Run Chris and the Wheelbarrow Another School of Thought The Moffatt Foundation Two by Two