Ben, Susan, Nick and Michael are on the tube after doing some Christmas shopping, and due to signalling problems the train cannot move. Michael gets a girlfriend called Claire (Sydney Stevenson), Nick makes money by selling bottled water and Susan starts decorating the carriage. Abi, Roger, and an Albanian man (Samuel Gough) are busking as a Romanian folk band, while Nick brings Richard Whiteley to see Ben and Susan. However, when the problem is fixed, the driver (Nigel Lindsay) refuses to move on until Susan, who was rude to him, apologises. Meanwhile, Ben, dying for a drink, tries to steal the drunk man's booze whilst everyone in the carriage is asleep.