故事发生在19世纪，围绕聪慧热情、自由奔放的艾琳娜·马克思展开，她是马克思最小的女儿。作为第一批将女权主义和社会主义联系在一起的女性，她年轻时便投身国际共产主义事业，参加了当时的许多政治活动，关心劳工和女性的权益，并且致力…

After befriending a mysterious horse during a summer in the English countryside, 15-year-old Zoe finds the strength to deal with issues she faces.

Holloway Riding School, rivals of Bright Fields, steals the cup from them, so Zoe and Pin decide to go and bring it back. Meanwhile Rosie tries to fit in.