Craig is given 2 weeks vacation and leaves. Stephen Brett (William Sylvester), a Scotland Yard man with international experience handles this case. Hazel Court as Jackie is his GS contact. Balkans ruler Volgu (John Le Mesurier) is coming to London for a conference. 4 men who would like him dead are lured by GS to a small island but 2 escape to plot Volgu's death.