Old Man’s grandkids, Priidik and Aino, come to visit him for the summer. Determined to make the children understand the simple beauty of country living, he ends up working them like slaves. Priidik and Aino accidentally set loose Old Man’s prized and thoroughly abused cow. Now the Old Man and his grandkids have just 24 hours to find the rogue bovine, before her unmilked udder explodes and unleashes lactopalypse, or before the mysterious Milk Man beheads her. On their epic journey, our heroes must face festival hippies, forest monsters, disgruntled lumberjacks and other dangers commonly found in the Estonian countryside.