Cyclocross, football, motocross, cross country running and horse riding. Five sports in wind and weather, and therefore often in the mud. In 'Slijk' we meet people who don't care and go for it: out of passion for their sport. Most of them we don't know (yet). They are in the shadow of bigger talents or have had a lot of bad luck in their careers. They have only just come to see if they are world champions in a lesser-known sport. Some grew up in the Flemish mud, others moved to Belgium to make it here. What possesses them to keep plodding through mud and mire?