The year is 1945 and WWII is wrapping up and troops are returning home. It’s a celebratory time, and Christmas around the corner, except for nurse Hanna who is still
   grieving her husband's disappearance in the war. Hanna learns that friend and fellow nurse Julia and her boyfriend Frank, who returned from the war with a broken leg,
   are now engaged. She feel happy/sad for them and takes a picture to capture the moment. Hanna’s favourite kid in the hospital is an orphaned boy named Toby. They
   read and mention a comet that only appears every 71 years. Julia later tries to cheer her up by bringing her to the decorating and lighting of the town gazebo. While
   driving, Hanna swiftly crashes her car into a snowbank. She leave the comfort of her car for a wooden shed. When the Christmas Comet appears, Hanna is caught in
   a terrible storm and knocked unconscious. When she wakes up, she has been transported in time to 2016, and is dumbfounded to see that everything’s changed, the
   cars are modern, fashion has changed and people are staring at tiny screens. She meets a man who helps her discover the bonds of family and that the true meaning
   of Christmas is timeless. Adult Toby then shows off the photos from Hannas camera. How her purpose of kindness in the past resulted in happiness to people in the
   future. But Hanna has already gone back. Back in the past Hanna’s digging out her car when Chet shows up and they hug.