Hayley and James are young and in love. They both make the same mad split-second decision to swap trains and surprise each other. Passing each other in the station, they are completely unaware that they have just swapped Christmases.

It's Christmas Eve-Eve. After waving goodbye in Marlyebone Station, new lovers Hayley and James can't bear to be apart for Christmas, so both decide to surprise each other and unwittingly swap trains by mistake. The snow begins to fall and with it they realise they are trapped with each other's family for the whole of Christmas. Will their love survive as their secrets get unwrapped?—Amazon Prime Video UK Originals