PROFESSOR CLINTON FREE, HEAD, UNIVERSITY OF SYDNEY BUSINESS SCHOOL: So Adam Cranston was raised in the Sutherland Shire in a fairly privileged family. He also has a love of fast cars, and a surprising family connection. PAUL FARRELL, REPORTER: This man is Adam Cranston, a 27-year-old corporate player experienced in cleaning up broken businesses. It shows that they most definitely knew that they were going to undertake a criminal activity. It really goes to the heart of their criminal enterprise. JOHN COYNE, FORMER COORDINATOR FOR STRATEGIC INTELLIGENCE, AUSTRALIAN FEDERAL POLICE: so phones that are not linked to them with all new numbers, it's an old form of trying to evade detection. One of the men hands out new phones they'll use to cover their tracks. PAUL FARRELL, REPORTER: It's 2014, and it's lunchtime at the Men's Gallery. SIMON ANQUETIL: The only place I lied through my fucken teeth was how Plutus earns its money.ĭEV MENON: All right, nah we're fucked man. PAUL FARRELL, REPORTER: And how it was brought down. LAUREN CRANSTON: Where are we going to move this money to? Can't just pay it all to the Tax Office but, we need something.

PAUL FARRELL, REPORTER: With 28,000 pages of evidence and 70 hours of police surveillance recordings never before heard outside a courtroom… Four Corners brings you the story of how they did it…

JOHN COYNE, FORMER COORDINATOR FOR STRATEGIC INTELLIGENCE, AUSTRALIAN FEDERAL POLICE: It's easy to say ripping off the tax system, but they're ripping off everyday Australians. PAUL FARRELL, REPORTER: Plutus will become the biggest tax fraud in Australia's history. JAMIE FERRILL, DISCIPLINE LEAD, FINANCIAL CRIME STUDIES, CHARLES STURT UNIVERSITY: There was Porsches, there were BMWs, there was an aircraft… This was a massive amount of money flowing around.

They name it after the Greek god of wealth: Plutus. That business is a scam to rip off the Australian Taxation Office. PAUL FARRELL, REPORTER: They're plotting a new business that's going to make them more than $100 million. PROFESSOR CLINTON FREE, HEAD, UNIVERSITY OF SYDNEY BUSINESS SCHOOL: It starts with a meeting of five men at Men's Gallery, a strip joint in Pitt Street in Sydney. PAUL FARRELL, REPORTER: Inside a well-known Sydney strip club a plan is about to be hatched.

What defcon level are we at today