The sadistic staff sergeant in charge of punishment has men run up a steep sand hill in the heat of the African sun. They run while carrying a full pack, and they go until they can go no longer. Along with Connery, several other prisoners are singled out for this ordeal. One of them dies, and that sets off some real problems for the commander and others. Somebody has to take the blame.
There were a number of movies like this in the '60s. Cool Hand Luke and One Flew over the Cuckoo's Nest come to mind. The Hill somehow gets overlooked, but it's well worth a look. Connery gives a great performance, and so does the rest of the cast. As I recall, it got great reviews when it appeared but didn't do too well with the public. Now it seems to be almost forgotten. It's a good one, though.