"This is Christmas" tells an exciting and heartwarming story about where you can find the magic of Christmas. This film tells the story of Adam (Alfred Enoch) and Emma (Kaya Scodrario) who go to work in London from the picturesque Langton village every day. Every day, they share their journey with the same character, but they keep themselves. But one day, on Christmas Eve, Adam broke the unwritten travel rules and began to talk with strangers on the train, inviting the whole train to hold his own Christmas party.