The climax of episode 22 is that one of the characters (Celia Toms) drives erratically and crashes her car which bursts into flames and the opening shot of episode 23 is the burning car and peoples' reaction - unfortunately in at least one region (Scottish) - the episodes were shown out of sequence so that viewers were shown the burning car with no explanation and tuned in to the next episode to find there was no mention of it - until the crash at the end.