It's the late 1960s and British Twins and Vicious Crooks the Cray's

Ronnie and Reggie on a branch out. They've already made a name in London's

Underworld and they set up a meeting with US Kingpin Myelanski, the so-called mob accountant,

who's in the process of establishing something called the National Crime Syndicate.

Kind of loose Federation of mobsters and ne'er-do-wells.

Another massive story for another episode.

So Ronnie and Reggie get on a jet and they land in Sin City,

alongside Scottish-born Essex boy James Campbell, their friend and PR guy.

Yes, Britain's most notorious gangsters have their own travelling hype man.

While there, the craze meets superstar Frank Sinatra, and they'd

barter a deal to protect the singer's son while he's touring Europe.

A good deal, seemingly made, the twins and Campbell are invited out to a giant mansion owned by one of Vegas's many

underworld figures. When they arrive there's a shot. According to Campbell the

trio has shown a basement beneath the villa where he says, quote,

there was this huge metal cage with tigers in it.

There was blood on the floor.

They told him this was where the enemies were disposed of. They had a bone collector who would take any remains to the Hoover Dam and throw them in.

When Ronnie came back, he was really impressed with the way they operated over there.

It was on a different scale. So these

being three of London's hardest geezers the Brits lap up the experience and in

actual fact the grisly scene they've just witnessed, it isn't really unique at all.

For centuries criminals have used big cats to intimidate, prove their worth, or even eat their enemies.

...