Rufus Excalibur Ffolkes is an eccentric underwater saboteur who can’t stand women but who loves cats. Lou Kramer is a psychotic madman who’s determined to blow up the largest oil rig in the North Sea unless the British Government pays him a king’s ransom. Roger Moore and Anthony Perkins star in this heart stopping battle of nerves where every second ticks towards a shattering finale. When Kramer (Perkins) announces his deadly plans, it’s up to Ffolkes (Moore) and his crack aquatic team to outwit him at his own deadly game – in less than 24 hours. James Mason co-stars in this offbeat thriller that mixes high seas adventure with a touch of English humour and class.