It's the double-bill of the century, as the Archies and Josie & the Pussycats co-headline a major concert tour - or so they think! Alex and Alexandria have sneaked behind everyone's backs to ensure that Josie & the Pussycats are the main act while the Archies are merely the opening band. But the Archies have made Veronica's cousin Marcy their manager and the ruse is soon exposed. Will the bands get through this dis-chord and once again find harmony?