New storyline. The famous Balaclava regimental silver is going missing pieces at a time from the Highlanders London HQ with fakes being put in their place. Gideon is called in by the elderly General (Finlay Currie) to find out who is doing it but comes up against regimental pride and secrecy. Keen goes to Amsterdam and Paris (library shots used) to find out where the silver is being copied and sold off. The result is a shock to Gideon. Also starred Allan Cuthbertson and Gordon Jackson.