She's a young Australian locked up in a Colombian prison on drug charges - but Cassie Sainsbury insists she is innocent. Her fiancé Scott Broadbridge reveals all exclusively to Sunday Night. He exposes the Australians who lured her into danger... the mystery man behind the disastrous cocaine plot... and the bust itself in Cassie's own words. They're young, rich and here to spend. Mega-rich Chinese investors are building an empire in our backyard... But what is it doing to our property market?