Episode Title:The Eraser.Episode Description:The girls are summoned to investigate strange blob-like creatures that have erased the memories of select top scientists in Bora Bora. During a chase, Sam is hit by a blob as well, wiping her memory clean and rendering her useless, much to Clover and Alex's dismay. To make things worse, Clover and Alex also have to deal with Mandy, who thinks Sam is her best friend after Sam had saved her hair from getting trapped in a pottery wheel.