The opposition believe Steed is responsible for the death of their agent Vinkel. Steed, however, had nothing to do with the murder and, as a show of good faith, agrees to a swap of partners with Keller in a bid to find the real killer.
Elenco:
Patrick Macnee
,
Honor Blackman
,
Diana Rigg
,
Linda Thorson
,
Ian Hendry
.