When Niko reaches out to Mel for help, she unknowingly reveals a new demon. Maggie volunteers to infiltrate the “cult” to help thwart him, but when she goes missing Macy and Mel set out to find her before it’s too late. Harry must face the consequences of the “gift” that The Elders have bestowed on him, leaving Mel, Macy and Maggie shocked and angry. Mel thinks that Fiona might be the key to helping Harry, which seems to cause trouble between her and Jada. Meanwhile, Parker is getting worse and Maggie has an idea on how to make him better.

When Harry mysteriously disappears, a substitute Whitelighter, Tessa, surprises the sisters. With Galvin's return imminent, Macy knows she must tell him her decision about her demon side. Niko is curious when she sees that the Sarcana has cleared out and calls Mel for clarity, but when Mel arrives she is alarmed at what she discovers. Meanwhile, Maggie is trying to figure out how she can pay for college and turns to Macy for guidance.

Galvin discovers that something bizarre is happening with the patients that are being brought into the hospital. Maggie gets a clue about how to keep The Source from taking over. Meanwhile, both Macy and Galvin do something no one could have predicted.