: While Charly (Laura Berlin) is away at art academy, sisters Lou (Leia Holtwick) and Emmie (Ella Päffgen) manage the farm. They are joined by their cousin Josy (Caro Cult), a city girl who knows nothing about horses.

: Lou seeks refuge with her childhood friend Cal (Max Befort) and his semi-wild horses. She gives Cagliostro the "great promise" that he will never have to race again, though keeping that promise proves difficult.

: Simultaneously, Emmie and her friend Susi secretly care for 22 Icelandic horses belonging to a neighbor who was also a victim of a poisoning attack.

: Trouble starts when Jochen Mallinckroth (Heiner Lauterbach) seeks to hide his champion stallion, Cagliostro, at Immenhof after a mysterious poisoning attempt. The farm is briefly transformed into a high-security facility to protect the horse.