Steed's department is guarding M. Roland, A UN negotiator in London for important talks, but cannot prevent an assassination attempt. Indeed, it seems that one of Steed's colleagues is selling secrets - and Steed finds that even he is under suspicion.
| Creator | Sydney Newman |
|---|---|
| Actor | Patrick Macnee, Linda Thorson, William Lucas |
| Country | United Kingdom |
| Production | Associated British Picture Corporation |