At 79cm tall and just 10kg, nine-year-old Australian Leo Lagana looks like he is just a few years old. He suffers from an extremely rare condition called primordial dwarfism.
60 Minutes reporter Michael Usher joins Leo and his family on the trip of a lifetime as they travel to America to attend The Little People Convention – a place where for the first time in his life Leo will be surrounded by people his own size.