Heidi, is an eight-year-old Swiss orphan who is given by her aunt to her mountain-dwelling grandfather. She is then stolen back by her aunt from her grandfather to live in the wealthy Sesemann household in Frankfurt, Germany as a companion to Klara, a sheltered, disabled girl in a wheelchair. Heidi is unhappy but makes the best of the situation, always longing for her grandfather.
Passionate for climbing, Allegra is victim of a terrorist attack, in which her friends lose their lives. She isolates herself after crushing fear towards people and a burning desire for revenge start devouring her. Her beloved ones are helpless. In order to be able to go back enjoying her life, she will have to face her inner struggles. In doing so, Arad – a young refugee from Middle East – crosses her path. Allegra’s greatest challenge will be regaining trust, especially when the element of diversity is involved.
In the spring of 1873, people from all over the world come to the tiny village of Göschenen in the canton of Uri, to work on the biggest and most spectacular construction site of modern times: the tunnel through the Gotthard.
