Carl Denham escapes trouble in New York by getting on a ship bound for a distant land. He gets into a fight and is made to disembark on Skull Island where he alights on a smaller version of King Kong.
The true value of an estate brings out the worst in the deceased's doctor (Christopher Lee), lawyer, sister (Joan Collins) and rightful heir (Robert Hardy).
A group of British government scientists investigate strange radioactive readings at Headstone Manor, a site where 18 people were killed a couple of years before their visit.
Ben Harris and Harold Tufnell-Jones are rescuers and British nationals who do their best to rescue a woman from Sir Hugh, the captain of an underwater establishment.