A patient wakes from a coma at a Dublin nursing home and reveals he's a gangster with a hoard of buried Celtic treasure. This presents a once in a lifetime opportunity for unconventional nurse Bridget and ex con Paul.

Bridget and Paul realise they're in trouble when they discover Grinner's past and the unhappy history of his Celtic gold. Bunny must choose between the law and Matron.

Paul reveals his troubled past to Bridget, who encourages him to settle an old score. Matron involves Bunny in a novel cure for her insomnia as Grinner stokes fears about Wesley.

Bee Man catches up with Paul as Bridget realises the cost of her hasty revenge. Matron's plan to swap Grinner for Maurice goes awry when Grinner escapes and Wesley closes in.

Bridget and Paul try to raise money forballoons as Grinner goes on a bender with underworld fixer, and horse Viagra bootlegger, Chick. Meanwhile, Ma Baker is on the prowl.

Ma Baker has Paul, Bridget is stuck with Grinner, and Bunny and Matron are desperate to make the swap with Wesley. Who will survive?