Billy begins to have second thoughts but knows that he cannot back out of his arson attempt on the Den.But Vicki is downstairs in the stockroom unpacking her loot of cigarettes and booze. Before long, the place is engulfed in smoke and flames and a terrified Vicki collapses.Kelly and Zoe argue about the events of New Year's Eve - each is uncomfortable sharing their feelings with each other.Meanwhile, a face from the past is quite literally thrown back into Albert Square.