Lynda La Plante 's nine-part drama set around the lives of a Welsh lifeboat crew comes to an end tonight with a story called UN1407, about a foreign coaster with a seriously injured crewman and a dangerous and unstable deckload of barrels.
When the shout goes out for the Penrhys lifeboat the men are in the middle of a fancy-dress party for Bronwen's twin girls, so some strange characters dash to the boathouse for the launch.
When they reach the stricken coaster it soon becomes apparent that they are facing not just a routine task, but the makings of a major disaster.
Episode wntten by Peter Barwood Producer Ruth Kenley-Letts Director Dewi Humphreys
A Bloom Street production for BBCtv