Is that Clint Eastwood? What movie???
Yep, it’s Clint. The movie is “The Eiger Sanction.”
Good book, too.
To summarize, Clint is a secret agent who has to sanction a spy, but doesn’t know who it is. He is sent to join a risky climbing team, because his handler is sure that the party they are after is one of the climbing team members. The mountain is the Eiger, in Switzerland.
I’m not really spoiling it for you, because that’s clear in the first few minutes.
Enjoyable flick, IMHO.