In one day, one crazy night, and in one city, the comedy Ubal takes place and disappears. Three friends, Mireček (Matouš Ruml), Vilém (Janek Gregor) and Dužan (Duy Anh Tran), make money by growing and selling quality grass. Once they receive an offer that is not refused: to sell a complete harvest in one night. However, when they close a deal with a dangerous Bulgarian (Predrag Bjelac) and his right hand (Karel Dobrý), they find out that someone stole their greenhouse on purpose. They only have a few hours to save not only the business of the year, but also their little ones.