Four children - Mari, Sadu, Olav and Anton form a secret society to play hide-and seek games invented by Mari's grandfather, a professor at the university. When the city is attacked by a mysterious poison which turns adults into children our gang embarks on a quest for the antidote.
Olivia Viikant
as Mari
Arabella Antons
as Sadu
Hugo Soosaar
as Olav
Karl Jakob Vibur
as Anton
Mirtel Pohla
as Kadri Heller
Evelin Võigemast
as Reet Haljandi
Ott Aardam
as Hannes Haljandi
Tiit Lilleorg
as Peeter Remmelgas
Sten-Markus Rohtla
as Leo
Gregor Kelder
as Vant
Meriliis Lillemägi
as Cätly
Sampo Sarkola
as Arttu Peltomaa
