They live on a rubbish dump and eat what others through away. Who? Slimesludge and Smellyfoot! The Olchis, of course! Cans, cigarette stubs, car tyres... there's almost nothing the Olchis don't like to eat! But then something bad happens: A refuse incineration plant is built! Now, the big family of hungry Olchis is not going to let this happen. Muck City is drowning in chaos. Only Joe and his bandits are rubbing their hands. Finally they have a chance of bringing off the biggest coup ever. But, oh bother, what's this?! Somebody was quicker!