The Swann children are delighted when Shalondra and Gary announce they are going away for the weekend leaving them at home as the tuneful adventures continue in this musical comedy series. Unbeknown to the excited siblings, the trip is, in fact, a ruse, and Gary and Shalondra have ensconced themselves in the recording studio so they can spy on the children via a series of strategically placed cameras. Their plan goes awry, however, when they discover they are locked in.
Fed up with Toyah obsessing about her belongings, Aretha decides to mess around with Toyahs things but breaks her step-sisters most treasured possession: her late mothers bow. Hadley and Isaac have to try to keep Toyah from discovering the truth before they can mend it.
When Martha discovers her parents are locked in and have been spying on the family, the crafty eight-year-old realises that she finally has a bargaining tool to negotiate for a pet kitten.