Bob Fossil has a big problem at the Zoo-niverse. Ivan, the bear has developed some very anti-social habits. The last straw is exposing himself to the visitors. Fossil arranges for a place for Ivan at an Animal Offenders Institute. All Fossil has to do is find a couple of idiots to drive the bear there in the clapped-out old Zoo-Niverse van. All Howard and Vince have to do is get Ivan there, in one piece, without falling foul of the Hitcher.