As Martin and James wait patiently to see Santa in his Grotto, Martin spots a medical concern that has him shut it down and send Santa packing-- until he's sure he isn't infectious. Louisa is determined not to let Martin ruin Christmas.

The doctor continues his practice in the picturesque seaside town of Portwenn, while raising his son with wife Louisa.

All is not well for brilliant but boorish Dr. Martin Ellingham as the hit British dramedy returns. To Martin's utter disgust, his medical practice remains under official scrutiny because of his pre-existing blood phobia, and he is forced to attend refresher courses starting with phlebotomy. His wife, Louisa, and aunt Ruth urge him to take this risk to his career seriously, but events conspire against him.

Doc Martin continues his misanthropic adventures in the idyllic seaside village of Portwenn. The fourth season of the hit dramedy sees two unexpected arrivals that complicate the good doctor's already messy life. Contains eight episodes. Episode 1. Martin's fear of blood has not decreased and he almost gags when he has to remove a crayon from a school-girl's ear. For all this he is still interested in returning to surgery. Louisa has left town and...