In November 2003 the first competition of urban climbing, the “Street Boulder Contest 2003”, was organised in Milan. The 28 Blocks in the city street were kept secret until the last minute, but the interest for this novel event created an atmosphere of anticipation and attacted young poeple from various lombard towns. Over sixty people participated in this original competition, a sports challenge of sheer entertainment. The video tells the story of a night in which bouldering, the new sports climbing frontier, was practised on urban building, proposing a new and original version of this sport.