This was an impregnable fortress. The only way you get out was in a wooden box.

The controversial maximum security prison impossible to escape from.

And one of the duties of a political prisoner is the escape.

The IRA inmates who found a way. of a political prisoner is the escape.

The IRA inmates who found a way.

I'm Carlo Gableer and I'll be navigating a path

through the disturbing inside story of the biggest jailbreak in British and Irish history.

The narrative that they want is that this is a big achievement by them.

Escape from the maze, listen first on BBC Sounds.

BBC Sounds. BBC Sounds, music radio podcasts.

All right, settle down.

I'm Gabriel Gatehouse. You're listening to Seriously from BBC Radio 4.

This is the final part of our special series called The Puppet Master.

We're on the trail of Mr Black Square, the man who conjures new realities out of nowhere.

He's the most powerful man you've never heard of, but he's got enemies.

When we last left him, Vislav Serkov was in trouble.

Tens of thousands of people, the young, the middle class, the liberals of Russia,

were out on the streets of Moscow, demonstrating against the system

of fake democracy that he'd created.

The puppets he once controlled had taken on a life of their own and meanwhile enemies were circling.

I had one of the operations of the

I think everyone was his enemy inside the Kremlin.

...