When the pictures from Bergamo in Italy go around the world in spring 2020, even non-medical people know what the word pandemic means. The previously unknown Coronavirus is spreading rapidly across the planet. Four days later, exit and contact restrictions also apply in Germany. Since then, the life of the Konstanz intensive care physician Dr. Carolin Mellau and her family on their heads. The female doctor becomes a member of the crisis team and is on duty around the clock to prepare the clinic for the impending emergency. As an anesthesiologist intubating those infected with COVID-19, she herself carries a high risk of infection. Meanwhile, her husband Stefan has to cancel his concerts as a musician, is no longer allowed to teach his music students and is suddenly sitting at home without an income. Teenage daughter Luzy is not allowed to see her Swiss boyfriend because the border is closed. She and brother Tim cannot go to school. But the worst case for the family is yet to come.

Olaf Gabriel is the head of the department and at the same time the only employee of the police station in Hedly, a small northern German coastal town. He has quit his service and waits at the station for his successor. But instead of the replacement appears the young LKA official Gracia Keller, who wants to support him. Because on this day Simon Held is released from prison after six years. And he will surely come to avenge Olaf Gabriel, whom he considers to be his brother's murderer. He was killed in police custody after his joint bank robbery - and Olaf Gabriel had been on duty.

Actually, Kathi should be happy: her best friend Caro marries and wishes on top of Kathi as a maid of honor. Would not it be the unspeakable coincidence that the wedding is also Kathi's ex-boyfriend Markus and his new super-girlfriend Maria invited. For Kathi it is clear: She has to find a companion for Caro's wedding. Easier said than done: All conceivable men in their circle of acquaintances are already taken. So Kathis way leads to the brokerage "Datelink". Already at the first meetings she receives illustrious, colorful and absurd insights into a generation of men in search of the woman for life.

Thomas is a pickpocket and he's good at it. When he meets Violca, he changes targets. Unfortunately, he also stole from her.

Marie is caught in a life she has never wanted - out of a sense of duty she has taken over her parent's farm. On her mothers birthday party her sister Anne, who run away with Marie's boyfriend three years ago, makes a surprise visit. While Anne is begging for forgiveness Marie punishes her by maintaining silent. A power struggle between the sisters begins...

Shows the interaction between Hamburg police officers and paramedics.