When Australian academic and B-girl Rachael "Raygun" Gunn crashed out of the Paris Olympics in the first round of the breaking event she became a cultural flashpoint, inspiring countless memes, heated debate and a torrent of online abuse. And in the months that followed, she continued to confound public opinion.

Nearly a year since her infamous routine, with its questionable athleticism and imitations of kangaroos and sprinklers, Australian Story examines the Raygun phenomenon to try to understand why it created such a storm and why Gunn remains such a polarising figure.

The dramatic conclusion to Australian Story's two-part account of the extraordinary 24-hour rescue effort to save Lithuanian rafter Valdas Bieliauskas from rapids on Tasmania's Franklin River.