Young ballerina Alicia dreams of performing on stage, in the evenings she watches recordings of productions and dances in front of the TV, imagining herself as a prima in Swan Lake. In reality, not everything is so easy, she has strict parents, and at school they demand maximum effort from her. The girl has a favorite antique toy - a tin soldier, with whom she can talk and share all her worries. One day, falling asleep, Alicia finds herself in an enchanted castle and is met by a boy soldier, reminiscent of her toy from the shelf. He tells her about a monster - a king who cries and plunges the castle into darkness from his sorrows. Together with a new friend, the girl goes on a journey, the goal of which is to remove the spell from the monster and the castle. Only a young ballerina can do this, who lives with one dream - to go on stage.