The setting is World War II, and England has made and trained a small group of special elite forces called 'commandos'. These commandos are specially trained to take on the most crucial and risky missions. These men are sent in to covertly take out installations, sabotage plans, assassinate leaders, and cause as much disruption to the enemies of the free world.
This was a very good game, and one of the very first I ever played on PC.
The levels are well-designed, and the game forces to to make use of each commando's special abilities in order to achieve the objectives.
This is a challenging game that rewards patience and the trial-and-error approach.