When a disgruntled elf takes over the North Pole, she turns time backwards and Santa Claus begins getting younger fast. It's up to a loyal elf, a little girl with a magic key, and the now-teenage Santa to save the future of Christmas.
After Jane is diagnosed with a fatal illness, she pursues her dream of sailing to see a lighthouse. When her boyfriend, Warren, wants to sell the boat to pay for her medical treatment, Jane must decide whether to preserve her fleeting life or live it to the fullest. Will this bring them closer...