A marine musical comedy from Denmark. The radio operator, Hjalmar Olsen, lives in Nyboder. He handles all the problems for the Nyboder friends when they are in trouble - on land or at sea, from the sister's heartache with the less real rich man's son, the stoker's daughter's problems with an intrusive man, to a mutiny that breaks out on a foreign ship. Hjalmar is a man of action, who always acts quickly - and cheerfully - well supported by the gallery of brave boys and sailors.
An American gangster nicknamed "English Joe" has fled across the Mexican border with his gang, consisting of four men in addition to himself. The American police are after them because of a bank robbery in which they killed several of the bank's employees. But "English Joe" soon comes up with a new plan that can bring them to safety for a while and at the same time give them the opportunity for a new coup. An old engineer who has worked at a weapons factory in Mexico has traveled home to his own country to complete an epoch-making invention: the silent machine gun. The men are ordered to Denmark, where the old engineer now lives.
The wealthy Olaf Brammer is the real owner of a nationwide company that trades in household goods. But he has no say, as the authoritative general manager Schram manages both the business and Olaf Brammer with a sure hand. The situation at work, defeat in love and a dead goldfish make Olaf Brammer depressed, and he decides to travel away from it all.
