After the tragic death of their mother, Mel and Maggie learn they have an older sister, Macy, and discover they all exhibit impossible new abilities.

After getting a message from the spirit board to not trust Harry, the sisters are conflicted and ultimately concoct a plan.

While waiting for The Elders to arrive, the sister’s patience is growing thin as they keep a watchful eye on their new charge. Mel does not agree with the solution presented by The Elders and enlists Maggie and Macy’s and even Harry’s help, but it means going against The Elders. Meanwhile, Macy, Mel and Maggie are all starting to realize that juggling their two worlds is becoming more difficult.

With Maggie trying to make up with Lucy, she realizes that there is a new Kappa member she isn’t familiar with and enlists Mel’s help to find out what is going on. Macy is concerned about what she saw on Galvin and invites herself to his birthday party to investigate. Meanwhile, Macy is told a cryptic message about her past that she decides to share with her sisters, but her sisters have a secret from her.

With Macy on a quest to find answers, she goes against Harry’s advice and summons up a Necromancer which puts her and Maggie in harm’s way. Maggie attends a frat party at Lucy’s encouragement, to help her get over Parker. Meanwhile, Mel helps Harry who is struggling with his regained memories.

Macy is not able to trust herself due to her memory lapses, so she asks Harry and Charity for help. Stronger than she thought she was, Macy starts to piece things together and is eager to share her vision with her sisters. Meanwhile, Mel and Maggie are worried about Macy and turn to an unexpected source for help.

With the Elders feeling that their lives are still in danger, the sisters and Harry band together to try and stop the evil that is happening. Mel and Maggie become concerned when Macy starts to tap more easily into her demon side. Meanwhile, Niko and Mel seem to be in a good place until Mel messes it up.

Maggie, Mel and Harry grow wary of Macy's newfound power; Macy keeps creating alternate realities, but they don't end up being the perfect versions she was hoping for; Maggie and Mel still struggle with what will happen in their personal lives.