The Prado Museum in Madrid has entrusted one of its Rembrandts to the San Francisco Museum and as you can imagine Commissioner McMillan is personally supervising the security. But some enterprising thieves have a way around that. They kidnap Susan Saint James and hold her for ransom in exchange for the Rembrandt.
A whole lot of red tape has to get cut through if Rock Hudson is to get his wife back. The Spanish counsel in San Francisco Cesare Danova has some big objections to one of his country's treasures being given away. Not to mention Henry Jones who has brought the Rembrandt to the Bay Area for exhibition. Still Hudson gets it done and gets his wife back after a high speed boat chase in San Francisco Bay with the help of the Coast Guard Commander, the skipper Alan Hale, Jr.
This wasn't terribly hard to figure out who was responsible for the kidnapping and the ransom. In fact if you don't know right after the first 15 minutes you're not watching too many of these shows.
Excitement yes, suspense definitely not for this story.