Merchant Madsen's 19-year-old daughter Amanda is planning to run away from her family's holiday and Madsen himself is at odds with one of the locals when he runs some chickens down. This year there is a new girl on the staff; 18-year-old Fie going to be a kitchen maid, but is immediately promoted by the hotel host. This arouses indignation from one of the other maids who decides to work against Fie.

Amanda has a bet with her friend in Hornbæk about who first debuts sexually, so now she is quickly trying to find a man. Her father is more concerned with getting her married well and sees his chance, as a Count's family moves into the hotel. One of the maids has a nocturnal visit from a young man which is strictly prohibited and hotel host Julius Andersen is determined to find out which of the girls it is. Andersen's morals are less important when he sees his chance to look through the keyhole when the young girls bathe. And then Royal actor Edward Weyse is suddenly summoned to a secret rendezvous in the summer night.

Fie dreams that her father has became ill and falls. She wants to leave her place as maid and go home, but it's not easy to tell Mrs Andersen or the young man Morten, who has been interested in her. Amanda has other plans. She is determined to win the bet over who is first with a man and does everything possible to get to a party at one of the big hotels in Skagen. Her father's interest in the young Count Ditmar gives her unexpected help. And then the hotel host gets an urge to look through keyholes, while the young girls bathe.

It has rained and stormed for two consecutive days and the guests are starting to get on each other's nerves at the Seaside Hotel. Weyse has an argument with the theater about the cast for next year, and Amanda will be persuaded to take a trip to Skagen with Count Ditmar. Mrs. Andersen must cope with the operation of the hotel alone, now that Mr. Andersen is in the hospital after the accident with the electricity, and it is quite a challenge for Molly Andersen, who has never had anything to do with the finances.

The small seaside hotel prepares for Mr. Andersen's funeral, but not all the guests think it is compatible with a holiday. For Molly Andersen, it's a sudden challenge to bear the whole responsibility for the hotel. Can she manage both guests and girls, and will she be allowed to keep the hotel right after her husband's death? Fie helps where she can, but Morten does not make it easier for her, as he once again provokes merchant Madsen. Yet it will be a very special evening at Andersen seaside hotel, where a summer night turns out to lure guests to unfamiliar adventure. And not least the awkward bachelor Adam gets an unexpected experience.

Summer is coming to an end at the resort and guests are preparing for parting with the sweet holiday life. Fie is invited to stay for the winter, but is in doubt because of the relationship with Morten. Mrs. Fjeldsø makes a last desperate attempt to find a suitable match for her son Adam, while Weyse abandons his desperate hunt for Mrs Aurland and learns something new about women's psychology. Merchant Madsen sees through Count Ditmar, but still hopes that he will be his son-in-law. Everything is bright until Ditmar's tormentor suddenly shows up at the hotel and threatens to expose the young Count's past.

The summer of 1929. The regulars from Copenhagen are back at Andersens Badehotel by the North Sea. Wholesaler Madsen's daughter Amanda is also arriving after a trip abroad, which was arranged by her parents to get her away from an unfortunate romantic connection. The maid Fie looks forward to Amanda's arrival with mixed feelings. The Grosserer daughter is the only one who can help Fie's boyfriend, Morten, free from the accusation that has kept him on the run for a year. But will she? And then two young men move into the hotel laden with a gramophone and jazz records in search of adventure.

The hotel is turned upside down to get ready for Amanda and Count Ditmar's engagement party. There are high expectations, but not for Max, who has a great desire to see Amanda say yes to someone else. Molly Andersen has picked up extra help at Hotel Udsigten, but there is smoke in the kitchen, as it turns out that the borrowed maid Jenny has just married the cook Martha's boyfriend. Weyse tries new means in his attempt to seduce office manager Aurland's wife, while Amanda has to remind her father of what he promised in return for her engagement. And Fie finally sees Morten again after a whole year.

Ten years after he left in anger, the late hotel landlord's son, Poul, returns home from America to end the inheritance case with Mrs. Andersen. The girls in the kitchen wonder what really happened between the serious young man and his father, and whether he has come now because he wants to take over the hotel. Amanda has put her father on ice until he keeps his part of the deal and acquits Morten, but then she suddenly discovers a secret that can solve the problem completely without the help of wholesaler Madsen. Mrs. Aurland is distraught over her relationship with actor Weyse and decides instead to seduce her husband.

Molly tries to borrow extra money for Poul's inheritance share, but gets "no" from the bank. When a buyer signs up to take over the hotel, Fie thinks it's time Poul knows what he's exposing Mrs Andersen to. The female guests are tired of their husbands' indifference and take a trip to Skagen, but the gentlemen prove to be fine to run a party without them. Morten returns home free of all charges, so Fie and he can finally be together. And Amanda and Max are caught in a thunderstorm, while little sister Vera and Miss Vetterstrøm try to get in touch with the deceased hotel host.

Molly has been promised she can continue as a tenant and keep her girls, even if grocer Damgaard buys the hotel. However, it quickly turns out that the grocery couple does not have the purest flour in the bag. Mrs. Fjeldsø is shocked by a letter from her son in Sweden, so her sister Lydia must use unconventional means to find out what has happened. Madsen is gripped by stock fever after big gains in the American market, and Poul finally finds his youthful love. In the kitchen, things also happen when Edith gets an idea of how she and the other girls can prevent Mrs. Andersen from signing the grocer's sales agreement.

In the penultimate episode, summer sings the last verse, and it has become the hour of truth for both guests and staff at the small hotel. It's getting harder and harder for Morten to hide from Fie what he's making a lot of money on. Helene Aurland has to decide if she should tell her husband that the child she is expecting is not his but actor Weyse's. And Amanda and Max make plans for how they can meet after the holidays until the truth hits them too. Only Mrs. Fjeldsø is completely certain– she has been let down by her son Adam, and it is irreparable.

Madsen has made a splash on the New York Stock Exchange, so he and his wife rent the hotel to a private hunting party to celebrate a happy family event. Fie and Molly have been busy opening out of season and the girls are extraordinarily summoned. Amanda struggles with the melancholy of being back after breaking up with Max and finds a confidante in Fie, while the jealous actor Weyse fears he will get into an accident with his rival, office manager Aurland, in the middle of the hunt. But nothing goes as expected this October weekend in 1929, when it blows up into a violent storm.

May 1945. Amanda is back at the hotel with her daughter, and soon both staff and regulars will arrive. Among others, Mrs. Fjeldsø and her Swedish granddaughter.

Mrs. Fjeldsø tries to keep to keep Sarah away from Mr. Weyse, and Mrs. Frigh gets an admirer. Ditmar is back, and then a sign of life from Mrs. Knudsen gives Amanda hope.

Helene Weyse is tired of her husband's preoccupation with Sarah and invites Mrs. Frigh on an outing with surprises. The Molin couple make their entrance into the hotel.

Weyse is despairing that his unknown daughter has put him on ice, while Helene gets another invitation to Skagen. At last Amanda gets news from Germany.

Much must be achieved before guests can travel home. Weyse makes a startling statement, and Amanda is impatiently waiting for news. Ditmar is ready to address editor Bruun's case.