"Mountain of Ice" is the story featured in issue #9 of Action Man.
In the arctic, Action Man finds a missing nuclear submarine that has been trapped in ice by Dr X. Action Man snowboards towards Dr X's henchmen. He defeats some of them , but Dr X shoots the ice Action Man was standing on and makes him fall into the water.
Luckily, Action Man was prepared; he reaches a vehicle he had hidden underwater, goes to the submarine and rescues the crew. He then returns to the surface, where Dr X tries to escape in a snow truck. Action Man cuts the ice to thwart Dr X's escape, but Dr X pummels through the gap rather than surrender.
Later, the snow truck is found, but there are no traces of Dr X. Action Man tells the crew "He'll be back... make snow mistake!"