We open the episode 20 years ago with Mrs. Vera begging a mysterious woman to allow her baby to survive. She agrees to sacrifice anything in return for her baby’s life. The woman then awakens the baby, who appears to had been dead for some time. The woman then tells them their sacrifice must be leaving Macy forever (after two years together), never allowed to set eyes on her.
Back in the present day Maggie and Mel continue to read letters from Mrs. Vera. Harry arrives, and Maggie reveals that Macy was revived by a woman necromancer.
Maci comes downstairs and insists her sisters stop worrying about her.
Harry knocks on Macy’s bedroom door and tells her that he understands how she feels. He, too, died and was brought by the Elders. He insists he experienced the same struggle of confusion when one cheats death. Maci admits she feels tainted because it’s unnatural. She wonders if her resurrection is where her “darkness” comes from.
At the University, Maggie bashes Mel for stalking Niko’s Instagram. Mel says she was just curious why Niko chose to become a PI, but Maggie reminds her there’s no way she can get back with Niko again.
Maggie runs into Lucy, who asks if she’s going to the stoplight party that night. Maggie declines, but Lucy insists that she attends, whether Parker shows up or not. Maggie declares she will wear green to the party, telling the world that she is ready and available.
At the manor, Macy calls the necromancer that once brought her back to life. The woman appears, but tells Maci she has “no idea what she’s done.”
The necromancer Nancy is scared, worried a witch named Syd, who is hunting her, was the one who performed the spell. Macy promises it wasn’t her, and she just wants answers. Nancy agrees if Macy helps her brew her spell.
Mel meets Niko at a café. It's one of the cafes they used to frequent while they were dating. Niko explains she made the PI change two years prior after she woke up and felt like something was missing from her life. Mel bends over, revealing a scar on her shoulder. Niko is concerned, but Mel brushes the topic off after Niko proclaims she was having déjà vu.
Macy reveals to Nancy she’s telekinetic and finds out her mother actually took the necromancer out of Tartarus. She claims she was put there unfairly by the witch Syd, who was upset Nancy wouldn’t revive a demon Syd had fallen in love with.
Nancy also explains when resurrecting someone, she has to call upon light and dark forces, and sometimes those turn evil instead of good. Maggie enters, right as the witch Syd shows up to attack them.
Harry tries to orb himself and Mel back to the manor for help, but they end up in England instead. Harry reveals lately, he hasn’t been able to take a hold on his powers thanks to a personal matter he’s been dealing with. He then tells her that they are in Manchester because that is where his son currently lives.
The girls continue to get attacked, with Syd finally revealing herself. She claims Nancy turned the love of her life into a demon. Syd then continues to attack, but as she’s about to hurt Maggie, Macy loses her temper and throws Syd out the window.
In Manchester, Mel gets news of the situation back at home. They go for a pint of beer, and Harry comes clean about the secrets he’s been keeping regarding his son. He explains his stress has clouded his power and he can’t be their white lighter anymore. Mel tells him she’s going to help Harry finds his son, even though he knows nothing about him, not even his name.
Back in the manor, Nancy (the necromancer) ties Syd with magical chains. Macy tells Maggie to go and have fun at the party. Nancy insists on killing Syd, but Macy won’t kill another witch. Instead, Macy suggests they find a spell to constrain her in the Book of Shadows.
At the party, Lucy and Maggie are having a great time, when she spots Parker from across the room. A bunch of guys dance with her, but none of them stick when she can’t be honest about anything regarding her life.
Maggie confronts Parker (who is wearing red, missing her) and unloads on him. Parker apologizes but promises that he didn’t sell the Charmed Ones out to his father. She walks away anyway.
Macy and Nancy realize that Syd has escaped the chains.
Mel and Harry look all night but can’t find any leads to his past. Harry realizes he feels strangely drawn to a church nearby. When they enter, however, Harry can’t pick up any feelings, so they go and search the records. Harry finds a picture of himself with his wife, and his original name was James, and his son’s name is Carter.
At the manor, Nancy and Macy are on the lookout for Syd, when they get a call from Maggie, who tells them Syd has her captured in the frat party bathroom. Syd takes the phone and threatens the girls, tellng them Nancy has to show up at the party in 15 minutes, or Maggie will die.
Macy and Nancy get to the party and ask Parker for help. They find Syd in the bathroom waiting for them, with Maggie drowning in a shower. Macy starts to stop Syd’s heart with her powers until she releases Maggie.
Macy is about to kill Syd, but Parker begs her not to tap into her dark side. Syd insists that Nancy is evil and that she made a deal with a demon to stay young forever. Everyone she revives, therefore, must be good, and then become demonic with the blood she uses to revive them.
Nancy tries to escape, but Parker stops her. Nancy attacks him, but then evaporates, breaking the terms of her deal by attacking a demon instead of a witch.
In Manchester, Mel and Harry finally track down Carter, who is now a grandfather. Because he’s happy and healthy, Harry feels like he can let go and go back to being a white lighter.
The next morning, Maggie and Mel comfort Macy, who says she’s feeling better now that she has the answers and knows the truth. Macy says she can feel how the demon blood in her takes over, and worries about it controlling her in the future.
Macy meets up with Parker’s mom and asks to make a deal. She agrees to help her find a way to take the demon out of Parker if she’ll help Macy take the demon out of herself. They agree.
At the coffee shop, Mel ends up bailing on her next meet up with Niko, letting her go once again.
Parker catches up with Maggie at school to make sure she’s okay after the party. She tells him she doesn’t hate him and appreciates what he did to help save Macy, but there’s no getting back together; at least for now.
Lucy is then revealed to be Skyping with Allister, who has control over her mind and wants Lucy to get Parker and Maggie back together. He tells her she needs to hurry, and make sure they fall back in love.