Long-suffering child genius Bertie Pollock has much to contend with in the latest instalment of life at 44 Scotland Street, not least the birth of his brother Ulysses. Bertie had hoped that caring for a new baby would command all of his mother's attention, but he quickly sees that his dream of being left to his own devices is not destined to come true. Overprotective Irene bans Bertie from the playground, but then forgets little Ulysses outside the delicatessen, and suffers a deeply embarrassing moment when she unwittingly retrieves the wrong baby.

Meanwhile, for the other residents of Scotland Street, all's fair in love and friendship. Big Lou finds a new man, Matthew and Pat edge their relationship towards something more permanent - although this development is not without complications, when a glimpse of someone who just might be her handsome, caddish ex-flatmate Bruce sets Pat's pulse racing - and Domenica's friendship with Antonia is tested to the limit when an assortment of her belongings mysteriously appear in Antonia's new flat.