Eighties teenager Marty McFly is accidentally sent back in time to 1955, inadvertently disrupting his parents' first meeting and attracting his mother's romantic interest. Marty must repair the damage to history by rekindling his parents' romance and - with the help of his eccentric inventor friend Doc Brown - return to 1985.
In a take-off of Charles Dickens "The Christmas Carol," Mr. Spacely is being so greedy and selfish that he would even make Ebenezer Scrooge blush. On Christmas Eve, he's first haunted by his former (ghostly partner) Jacob Marsley (a blue humanoid alien who's now wrapped up in mummy bandages.) Jacob Marsley warns Mr. Spacely about the consequences of being greedy. Mr. Spacely is too full of himself to take Marsley seriously, so now he's going to be visited by (what a surprise, not!) three more spirits.
As the first mail he receives, Orbitty gets an application in which he can enter any one of the family for Person of the Year. This leads to a dispute between the Jetsons as each tries to convince him he or she would be the best choice for the entry. Who will Orbitty pick as his entry?
In a bit of confusion, George believes Judy is going to elope with Mr. Spacely's nephew.