In this thrilling World War II action-adventure, a group of Allied soldiers embarks on a daring mission to rescue a captured American general from a seemingly impregnable Nazi fortress in the Bavarian Alps. The film stars Richard Burton and Clint Eastwood, whose performances drive the suspenseful narrative filled with twists and turns. Directed by Brian G. Hutton, the movie is renowned for its intricate plot and impressive action sequences. Interestingly, the film was one of the first to feature extensive use of helicopters in its action scenes. For those interested, it can be viewed for free on 123Movies / Movies123.