John Fletcher is a Control Engineer, who feels that Life has passed him by. He was forced to give up a job that he loved and settled for a regular wage and a pension. He doesn't like what he has become. Caroline, his wife has shown a talent for management in the charity sector. John is unhappy that the job seems to have taken his wife away but when he sees someone else pawing her at a presentation, he realises that it isn't just the job that has claimed her. In a state of emotional turmoil, he crashes his car and is left paralysed. He tells Caroline that he knows and that he is not coming home.
Part 2 finds John Walking again and becoming a celebrity because of his involvement in the development of a bionic arm. When he is presenting a paper on control systems, in London, he is ambushed by Caroline. She pretends that she wants his approval to take a job close to where he lived. She is really trying hard to reconcile. John is tempted, but her all-out approach convinces him that she is not being wholly truthful. He is deeply unhappy about it but is convinced there is no way back. He is comforted by his attractive deputy from work.