In a quiet resort town Haapsalu four kids are spending their summer holidays together. Suddenly they are dragged into events that started in the 15th century in the local bishop's stronghold. The children must solve a difficult mystery of a clock robbery and they have to find a treasure that has been lost for centuries and contains a formula of making gold.
Liisa Koppel
as Emilia Piir
Mariann Vilbre
as Rosanna Maidla
Miikael Ainla
as Markus Piir
Mikk Kaasik
as Karl Maidla
Tambet Tuisk
as Tõnis Piir
Hilje Murel
as Berit Piir
Priit Võigemast
as Stig Velson
Lembit Ulfsak
as Herman Krookus
Ülle Kaljuste
as Margit Truu
Indrek Taalmaa
as Aivar Lohu
Tarvo Sõmer
as Roobert Üürike
Maie Matvei
as Museum Director
