The oil company is headed by Sumner Murdock. The exploration project in the North Pole is recommended and managed by Michael Baldwin.
The movie opens with several dynamite blasts. Dynamite is being used to break up ice which is clogging up the deep-sea drilling rigs. Disappointingly to the company, despite a successful blast, the drilling rig produces no oil. Baldwin is then picked up from work by an airplane flown by his wife Claudia. On the way home, Claudia tells Michael that she wants to move the kids back to Los Angeles where they can live in a more civilized environment. Michael argues that he cannot just walk away from the exploration since it was his idea. Upon arriving home, Michael and Claudia must deal with their three children arguing with each other about the existence of Santa Claus. To make matters worse for Michael, Murdock, portrayed as the stereotyped insensitive corporate boss, threatens to terminate his employment if the exploration does not produce results.
The next day, Michael returns to his office, where he is met by Santa Claus’ chief elf, Ed. Ed informs Baldwin that their dynamiting is causing damage to North Pole City, the home of Santa Claus and his elves. He explains that while their activities at "Site A", their primary drilling area, are causing extensive damage, any blasts at their secondary site, known as "Site B", would destroy North Pole City due to the greater proximity of the dynamite blasts. Assuming that Ed was just hired to pull off a practical joke, Baldwin bursts into uncontrollable laughter. The next day, Ed arrives at the Baldwins’ house in a modified World War II-era snowcat, explaining that he intends to take Michael and his family to North Pole City to prove that Santa Claus is real and reveal the damage that is being done. Michael cannot go since he has a meeting at work, but Claudia and the kids agree to go along, continuing to assume that its just a practical joke.
Ed then takes them to North Pole City. They meet Santa and Mrs. Claus. Santa shows them his secrets, including a device that slows time down so he can make all his deliveries in one night and anti-radar devices that protect North Pole City from being sighted. Santa then shows Claudia how North Pole City has sustained damage because of the dynamiting at “Site A” and how the city is right next to “Site B,” where the company may also begin to dynamite. He warns them that one blast at Site B would mean the end of the city and, therefore, Christmas as they know it. He then says that the main oil field is actually at Site A and that they will find it if they keep dynamiting there.
Upon returning home, Claudia tells Michael and Murdock what Santa said about where the oil is. Murdock believes that Claudia and the kids were given a hallucinogenic drug by Gaylord, the corrupt head of a rival oil company, to keep them dynamiting in the wrong place. Murdock orders that Site B be dynamited on Christmas Eve so they can get to the oil before Gaylord does.
The kids eavesdrop on this meeting and decide to sneak out of the house in the middle of the night and take a snowmobile to warn Santa. The youngest Child, C.B., is left behind to tell the parents where the older two went. When C. B. tells Claudia, the latter takes off in her plane to look for them. She sights snowmobile tracks and follows them into an ice fog. Santa, with his sleigh and reindeer, goes into the fog to rescue them and takes them back to North Pole City. The fog keeps Claudia and the kids trapped inside North Pole City, so they must remain there until the fog lifts.
Meanwhile, Michael requests that Murdock postpone the dynamiting until Claudia and the kids are found. Murdock denies the request. However, despite Murdock's orders, Michael continues to dynamite at Site A, believing that the oil field is located there regardless. On Christmas Eve, as the dynamite crew is out at Site B counting down to the time to dynamite, C.B. receives a call at home from a crew member informing him that a gigantic oil field has been discovered on Site A. C.B. rushes out of the house to catch up with his father, who just left for work, and give him the news. He then convinces his father that the dynamiting at Site B should be canceled since the oil has been found. Michael rushes to his office and radios the man in the hut near Site B to terminate the countdown. The man then leaves the hut, jumps on a snowmobile and rides out to the site, arriving just in time to stop the dynamiting.
That night, Santa drops Claudia and the children off at home while making his deliveries and the family is reunited. Murdock then arrives at the door to confront Michael on his refusing to dynamite at Site B. Michael informs him that oil had been found at Site A. Just then, the reindeer bells are heard and the Baldwins and Murdock go out to the porch to see Santa flying across the sky. A stunned but happy Murdock offers Baldwin a promotion. Baldwin declines, saying that he is going to make Claudia happy by moving them back to Los Angeles.
|Jaclyn Smith||Claudia Baldwin|
|Art Carney||Santa Claus|
|Paul Le Mat||Michael Baldwin|
|Mason Adams||Sumner Murdock|
|June Lockhart||Mrs. Claus|
|Buddy Douglas||Dr. Fernando|
|Michael Keys Hall||Faulkner|
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