Blossom, Bubbles, and Buttercup have been saving Townsville for many years. But when a portal that the Professor recently invented starts malfunctioning, the Girls discover their past selves: the 1998-2005 Powerpuff Girls! To save their dimensions from being destroyed, they must team up with the 1998-2005 Girls to go through other dimensions, while also meeting their other past selves, such as the 2014 Girls, their 2006-2007 PPGZ's, and the 1992 Girls.
