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.

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.