Vetřelci v Coloradu 2002 one on netflix

Three friends, Péťa, Ríša, and Ivana, decide to secretly follow Richard’s older brother Radek and his friend Tomáš on their adventurous trip to Colorado. They believe it is a mythical place where aliens are hidden, unaware that it is actually a picturesque hill in the Czech countryside. They look forward to experiencing an exciting adventure. And indeed, the journey of the little children and big “men” turns into a series of unexpected, funny, and exciting events and dangerous situations, in which, surprisingly, the “little ones” will save the “big ones.”