While painting graffiti, Spencer Huang inadvertently becomes possessed by a Dybbuk, a Jewish demon that forces the possessee to commit mischief and evil deeds. But this Dybbuk has a purpose: to find a suitable host for his girlfriend, an even meaner Dybbuk. When he finds the perfect candidate in Reine, Gwen's new worst enemy learns all about Gwen's secret.

As Gwen and Josh look forward to their first date, Patrick O'Leary does his best to break them up - on orders from Morgana, for whom, we learn, O'Leary is working. Ultimately, though, O'Leary's meddling only brings Gwen and Josh closer together, leading O'Leary to stand up to Morgana: from now on they'll do things his way as he gradually wins Gwen's trust, in their ongoing pursuit of Merlin's Stone.

A geology experiment goes awry for Spencer when he is magically sucked into an ancient rock painting. Problem is, the rock was also home to Warwe and Mineer, a star-crossed Aborigine couple, one half of whom has been projected out of the rock into present day. Gwen learns quickly that if she plans on saving Spencer, she must ensure a safe reunion of Warwe and Mineer.