There's a shakedown at the station – now, will the rat be uncovered? There's also the arrival of a new detective who'll give Sean some competition in the looks stakes.
Michael is ready to go on the run with Siobhán. She, however, is having second thoughts. And when Patricia finds his goodbye note, a race against time begins.
Elsewhere, the Rory-Katie-David love triangle is shaping up very nicely...
