Lea Brodie

A terrorist (Anthony Perkins) holds an offshore drilling rig and production platform for ransom in the North Sea. Ffolkes (Roger Moore) a wealthy mysogynistic eccentric, volunteers to send his crack team of soldiers in to stop the terrorists. With few other options available, the British Government reluctantly accepts his help. (imdb)

Searching for the lost world of Atlantis, Prof. Aitken, his son Charles and Greg Collinson are betrayed by the crew of their expedition's ship, attracted by the fabulous treasures of Atlantis. The diving bell destroyed, a deep sea monster attacks the boat. They are all dragged to the bottom of the sea where they meet the inhabitants of the lost continent, an advance alien race makes slaves of the ship-wrecked sailors. The aliens want to rule the human world to create a Nazi state. (imdb)