A

mysterious Russian called Psev is arriving for a conference at which Steed and Mrs. Peel have been hired to act as the security guards. However, a man called Gordon Webster who is an exact double for Steed turns up and offers his services to Psev's entourage of four people, fooling Mrs. Peel in the process and agreeing to kill Steed. Though he is thwarted it turns out that Psev is also not exactly the man that everybody had expected him to be.

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