The story follows two cousins, Duduś and Poldek, as they embark on an adventurous hitchhiking journey across Poland during their summer vacation. Despite their contrasting personalities—Duduś being more cautious and Poldek more carefree—they navigate various challenges and meet a range of colorful characters along the way. Through their experiences, they learn valuable lessons about friendship, resourcefulness, and the joys and unpredictability of travel. The journey ultimately strengthens their bond and provides them with unforgettable memories.