The I.B. are confronted by a case of 'the worst kind of smuggling'. Campbell puts Ross McInnes on the trail of the client concerned. Ross traces him as far as the Inner Hebrides but arrives too late. It seems he cannot pursue the case any further - it's a dead end. He returns to report his failure to a furious Campbell. Air Date : 5th-Apr-1968

A man called McGeely arrives in Scotland but cannot leave his ship because he has no papers. He claims he comes from Glasgow and mentions Sauchiehall Street as proof. But as the Customs men point out, everyone all over the world has heard of Sauchiehall Street. Smith and McInnes are after some smugglers who are bringing high quality jewellery into the country in small quantities. McGeely is given a piece to smuggle ashore but when he vanishes from the ship the smugglers have about as much idea as the Revenue men about where to find him. Who gets there first? Air Date : 29th-Mar-1968  Read More

The I.B. are confronted by a case of 'the worst kind of smuggling'. Campbell puts Ross McInnes on the trail of the client concerned. Ross traces him as far as the Inner Hebrides but arrives too late. It seems he cannot pursue the case any further - it's a dead end. He returns to report his failure to a furious Campbell. Air Date : 5th-Apr-1968  Read More

Last week Logan's death brought Ross to a halt. This week Smith resumes the search for the man who supplies the peddlers. Air Date : 12th-Apr-1968  Read More

Johnny Cain is back again and Smith's holiday in Switzerland develops into another case for the I.B. Air Date : 19th-Apr-1968  Read More

A labourer is taken to hospital having been poisoned by a bottle of illegal whisky. Ross McInnes investigates. Air Date : 26th-Apr-1968  Read More

Smith is faced with a very difficult moral problem when he is informed that there are several illegal immigrants working at the docks. Air Date : 3rd-May-1968  Read More

The I.B. are called in to assist when the Waterguard are being annoyed by the activities of Miss Stella Bruce, a rich young playgirl. Air Date : 10th-May-1968  Read More

A huge combine is selling smuggled goods in working-mens' clubs, but there seems to be no way for the police or the I.B. to break the organisation. Air Date : 17th-May-1968  Read More

Pressure on a colleague leads the I.B. to examine the sport of kings. Air Date : 24th-May-1968  Read More

A family reunion sets Smith off on the trail of an illicit brew. Air Date : 31st-May-1968  Read More

""Pull up the ladder, Jack"" could well be the Big Feller's family motto. Air Date : 7th-Jun-1968  Read More

A dangerous man escapes from jail and Smith becomes involved. Air Date : 14th-Jun-1968  Read More