The show centres around an 11-year-old girl named Molly (played by Mimi Robertson) who spends the summer helping her 19-year-old brother Mack (played by Joshua Haynes) at a
toy stall in The Big Hub, a
community hall in the fictional Scottish town of Bridgetown. The Big Hub, managed by Moira (played by Maureen Carr), is where a variety of stallholders hold an array of permanent market stalls including a
gift stall run by Alice (played by
Katrina Bryan), a
fruit and vegetable stall run by resident
handyman Bob (played by
Steven McNicoll) and a
café stall run by Mrs Juniper (played by
Alison Peebles). The
kids club at The Big Hub is managed by Molly and Mack's widower father James (played by
James Mackenzie). James is regularly seen supervising a number of children including Molly's friends, Suki (played by Miko Hanley), Magnus (played by Ethan Rowley) and Ruby (played by Freya Reid). Mack's girlfriend Daisy (played by
Danielle Jam) works at a nearby
veterinary surgery.
Songs During each episode, there are always two songs performed as a regular problem-solving plot device. When identifying a problem, a character performs
The Oops Song, before another character sings
The Idea Song when they propose a solution as a way to solve the problem. •
The Oops Song: sometimes Molly, Alice, Moria, Sandy, Mrs Juniper sings
The Oops Song. •
The Idea Song: ==Episodes==