A Ministry agent is killed on a golf course and when the Avengers search his flat, they find none of his scorecards went past the 12th hole. The Avengers investigate the club and meet with a frosty reception. Out on the course, two other players vanish at the 13th hole - but turn up later at the club house as if nothing happened. The club president is killed by a golf ball when he's helping Mrs Peel investigate and then Mrs Peel helps Steed cheat so he wins against the suspect, Reed, foliing his plan to play against Dr Adams that afternoon - a Russian satellite will be passing over, and they plan to use it to broadcast government secrets to Russia.
Great idea to set intrigue on the golf course, but the intrigue is a little flat here, it's uneven, and not many interesting characters. It's quite dull. There's some nice scenery of the golf course, golf fans would appreciate this. Rod Allen, who usual plays a good villain, comes across as dull and going through the motions. Just another assignment for him. Steed and Mrs Peel keep things at least watchable.