Charmed S3E10: We All Scream for Ice Cream

Overview

After having a song stuck in her head for a while, Prue eventually realizes it belongs to an ice cream truck. When she and Phoebe get sucked through a vortex into the van, they discover several children stuck inside and take it upon themselves to save them. However, the sisters soon discover that the children are demonic. Phoebe soon has a premonition where she see that as a child, Prue was sucked into the same van, only to be saved by their father. As a result, they have to call upon their father for help.