Sakov, one of Europe's most astute freelance agents, is trailed by Blake to Greenways Nursing Home, a health farm run by chief therapist Dr. Klam, and the Bishop assigns Father Unwin to find out what his plans are. Sakov engineers the crash of a GK2 test car at a nearby race track, but Unwin is baffled as to how he managed to escape the confines of Klam's theray theatre to carry out his sabotage.