Enemy at the Door

A new commander-in-chief is appointed to the Channel Islands and trouble begins when Dr. Martel's daughter Clare is arrested for trespassing in a prohibited zone. However, trespassing is the least of Clare's problems.

To Richter's dismay, the new commander-in-chief insists on being received socially by the leading families of the island. Richter turns to a conflicted Olive Martel for help. Meanwhile, the activities of Captain Foster-Smythe threaten disaster for all.

Dr. Martel returns to the island after six months in a French prison. Richter hopes the doctor can ease relations between the soldiers and the islanders, but Martel has relations of a different sort to worry about.

German efforts to confiscate all privately owned radio sets raise tensions on the island. Foster-Smythe is determined to resist, declaring that any cooperation with the Germans amounts to collaboration. Soon, he has even more reason to resent the invaders.

The German authorities and the islanders' representatives have a problem that only Dr. Martel can solve, but he refuses to cooperate. However, an act of sabotage provides both sides with a way to get Martel to play along.

Local landowner Peter Porteous returns to Guernsey after serving a prison term in France. In his eagerness to settle an old score, he again puts himself in the hands of the Germans, placing Dr. Martel in a moral dilemma.

A small team of British commandos launches a raid on a nearby island. Once ashore, they learn that their operation has coincided with the arrival of a high-ranking delegation of German officers - and an opportunity to impact the outcome of the war.

After a townsperson's petty act, the Germans grow suspicious of the owners of a local tearoom and a young German soldier who frequents it. Coming after a deportation decree for all non-island-born residents, the action has consequences far beyond what was intended.

A chess tournament seems like a good way to restore some normalcy. However, once the occupiers decide to participate, the tournament becomes a matter of national pride. SS man Reinicke is prepared to go to any lengths to make sure Germany wins.

The arrival of a senior SS officer on the island causes the opportunistic Reinicke to speculate about the reasons for his visit. But the officer's mission is of a personal nature, prompting Richter to come to the defense of an islander's rights.

A Russian prisoner of war attacks a camp guard and flees to the countryside. The escape affects all who come into contact with the man and prompts a race between Reinicke and Richter's police chiefs to find him.

A Swedish journalist arrives to report on the "model occupation" of the Channel Islands, as well as what the rest of Europe can expect under Nazi rule. The Germans strive to convey just the right image, but the islanders have a different picture to paint.

Peter Porteous decides he must return to England to aid the war effort. Meanwhile, a series of thefts at a nearby farm leads to a confrontation between the farmer and a German intruder. Porteous devises a way to help both himself and the accused farmer.