The Eiger Sanction

Dr. Jonathan Hemlock (Clint Eastwood) is tired of killing for a living, but the ruthless government agency he works for needs his services again, and they'll use any kind of manipulation they have to in order to get him to take one last job. They eventually convince him to take on a dangerous undercover mission that involves climbing the Eiger - and the most dangerous aspect is that he doesn't know which of his fellow climbers is the enemy assassin he's supposed to "sanction." (Universal Pictures US)