An old friend of Arthur's, Charlie Barker, has been banged up and the arrival of his son Shaun provides a problem when he asks Arthur for somewhere to kip. Arthur's all set for a trip with 'er indoors to the "Costa Packet" leaving Terry to look after the lad. Shaun will have some tough decisions to make when confronted with the prospect of taking drugs - will he make the right choice? (thetvdb.com)