Secret Society of SouptownThey're brave, loyal, full of imagination – and now face their most dangerous adventure ever.
Mari is often left to her own devices by her work-obsessed parents, so she spends most of her time with her grandpa Peeter and her three best friends. To keep them occupied and quench Mari's thirst for adventure, grandpa Peeter sends the kids on treasure hunts. Last time, it was for a pair of gardening gloves – which he claimed belonged to Marie Antoinette, and which she used just before she was beheaded.
Today the whole town is out celebrating at the summer festival, and the kids are on another quest. As they follow the clues, little do they know that “The Mask” is also there, and is putting his treacherous plan to poison the town into action…
Mari and her friends, meanwhile, have formed a secret society, and swear to do everything in their power to resolve every adventure that comes their way, no matter how difficult, dangerous or deadly it may be.
When half the adults in town start acting like children, grandpa Peter realizes what is going on. He gives the kids a secret notebook that has been hidden for over half a century, and which contains clues that will lead them to the cure.
They only have 48 hours to find the antidote before it's too late – but if anyone can succeed, then it's the Secret Society of Souptown!