In Dublin, Ireland (with Belfast accents) a man called Sean Cullen, after hiding a MacGuffin, is chased by the garda with the worst accents and the worst sirens I have never heard on an Irish vehicle ever. Yes, I know: I am incredibly picky when the Irish are presented in American media. You'll hae to indulge me, as they're generally never portrayed well.
This was not one of the most horrifying episodes I've seen. Unlike most representations, it looks like the writers may have actually looked up Wikipedia. Shannon airport was allowed to be used for extraordinary rendition until massive protests forced the government to stop.
Anyhow, Shaw shows up and has the Blooms head off to Ireland.