Doc Martin: Series 10, Episode 9: Christmas Special: Portwenn is full of festive cheer until Martin tells Leonard that he needs to stop playing Santa while he awaits the results of his medical tests. Leonard decides to show "Doc the Grinch" the magic of Christmas, with unintended consequences, and Louisa works to arrange a Christmas parade through Portwenn. After a mishap, Martin confronts some of his fears and tries to embrace the holiday spirit.