This series is still in production. So if you have any insights, documents or tapes you'd like to share with us,

please write to Documentaries at RTE.I.E. That's Documentaries at RTE.i.

This episode is about how the plan to illegally import guns, allegedly by members of the Irish government,

is coming together

and in danger of falling apart.

And in the moment you're going to hear

some pretty strange events,

like the death of a man pretending to be someone else,

a cameo appearance from the best-selling author

Frederick Forsy,

and the mention of the word mussey.

Why good is love and peace on earth? and the mention of the word musi. You're listening to episode.

I'm Nicolene Greer and together with my colleague Ronan Kelly and the RTE documentary in one team.

We are unpicking the stories that make up one of the biggest political scandals Ireland has ever seen.

The arms crisis of 1970.

And remember, you can catch Gunplot the TV documentary on the RTE player.

Muzzy, it means confused or blurred.

It relates to many aspects of the arms crisis story,

but particularly to the hospital briefing

Peter Berry gave the Taoiseach on the Bailey Burr a meeting, the one we heard about at the end of

episode three. Let's rewind a moment to that point. Peter Berry was the civil servant who

controlled the Guard a special branch the Garda Special Branch,

...