The comedy plot of "The Big Picnic" revolves around two contrasting families: the Drahomanovs, who work in culture, and the Nalyvaychenkos, who are local businessmen. One spring weekend, they both decide to have a traditional open-air barbecue. However, they end up at the same clearing, which each family believes belongs to them. A quarrel ensues, escalating into a bizarre battle for the barbecue spot. Suddenly, a third party enters the scene – a corrupt official on the run, who has hidden his ill-gotten gains in the same clearing. He takes the youngest children from both families hostage, demanding the return of his stolen money. What follows is a series of tricks, deceptions, and confrontations, along with unexpected guests and a chaotic mix of money. The story not only explores disagreements over barbecue marinades but also delves into differing perspectives on life itself. Ultimately, it conveys a message that despite our differences and conflicts, we can come together as a unified and formidable force when faced with a common threat.