After their Last Ditch Layer Cake breaks all the town's curses and brings an old enemy back, Kelly, Hannah and Darbie are on the hunt for a special ingredient to determine his whereabouts. The ingredient only blooms once a year... on Halloween, so The Girls have to find a way to go back to last year's Halloween and get it without running into their past selves.

Using the special ingredient the girls gathered from last Halloween, they cook up a Miso Soup to determine Chuck's location. However, when that fails to work, Kelly instead cooks a "Settle the Beef" sandwich in order to draw Chuck to them instead...but in order for it to work, Kelly has to spell her own Grandma.

The girls have their first interaction with Chuck, but it quickly becomes clear that he is suffering from some sort of amnesia. He doesn't remember anything about the Pluot Festival in 1965. Grandma and Mama P think he's lying and can't be trusted, so the girls cook a trust spell that helps Chuck adjust to the modern day - but it also unlocks some of his memories from 1965.

Unable to get consistent answers from Grandma, Ms. Silvers, or Mama P about exactly what happened with Chuck in 1965, Kelly, Hannah and Darbie cook a recipe that allows them to observe past events. Meanwhile, Chuck gets closer to the Quinn family when he saves Buddy from a skateboarding accident.

Worried that Chuck is getting too close to her family, Kelly and Darbie cook a special mint that acts as a lie detector, so that she can get her Dad to see through Chuck's act. Darbie uses the mint on her own Dad when he invites her to lunch to meet his new girlfriend Amy.

When the girls cook a fix it spell to help repair Jake's food bike, they find themselves compelled to remedy all problems, from repairing cabinets to helping Mama P spruce up the café. In the end, Kelly crosses paths with Chuck realizing he needs some emotional fixing.

The book leads Kelly to Chuck's hideout, hidden by an invisibility spell he cast. Kelly makes herself invisible in order to get inside, and is shocked to discover that Chuck is making his own magic cookbook.

After the girls discover Chuck is creating his own magical book using their recipes, they have to cook a strength spell in order to get the book safely returned to them.

Chuck knows the girls have taken his book, so he gives them, Grandma, Silvers and Mama P a sleep spell. Now, all six of them must stay awake long enough to cook a counter-spell together.

Kelly finds herself using magic to solve every problem, big or small, forcing Hannah and Darbie to hide the book from her. Meanwhile, Chuck finds a new way into the girls' lives through Jake.

As the girls continue to uncover details about Chuck's history, they must cook a spell to save Jake from Chuck's magic.

Kelly, Hannah and Darbie are racing to solve the final mystery within the pages of the book before Chuck manages to trap one of them inside the book for all time. Along the way, they learn a surprising bit of information about Chuck's past and his family.

When the magical cookbook goes missing from Kelly's backpack, the girls cook a tracking spell to find it again but are worried it might have left them forever.

In trying to get the cookbook back, Kelly, Hannah and Darbie accidentally intercept a spell that makes them unlikable.

When the girls create a spell to get RJ to give back the cookbook, they inadvertently learn that sometimes, by giving up what you want, you get what you need.

In order to learn more about RJ and find the other former protectors, the three girls do some investigating using a spell that speeds up time.

Kelly, Darbie and Hannah use a telepathy spell to go undercover at Saphrön to investigate Noelle Jasper.

Noelle is suspicious of the girls and curses them with a mystery spell which makes everyone pay attention to their smallest move.

Kelly, Hannah and Darbie try a spell on Mama P to help her remember magic but it backfires and they take away Mama P's personality, which then passes from person to person as the whole town starts to act like Mama P.

In order to protect themselves, the trio cooks a spell to help them remember magic forever. The downside is that they forget their friendship and ever meeting.

When the girls accidentally multiply Ms. Silvers trying to protect her, each of them has to spend the day with one of the clones keeping her safe from the forget-magic spell.

Hannah discovers new evidence that leads the others to believe that Mr. Morris, her tough new teacher at Fox Canyon, is the suspect who is cursing people. They cook a spell to protect anyone from entering Kelly's spell, but the moment the magical barrier goes up, Mr. Morris is already inside. There to work on Terri's mayoral campaign with Kelly's mom and her political advisor Jill. They are stuck together until they can find a way to cook a counter-spell without anyone noticing.

After Mr. Morris reveals that he was not a former Protector, the three girls learn the history of who owned the magical cookbook before them.

On the opening night of Darbie's play, the three girls cook a detective spell to help them identify who or where Caroline could be, but get lost in the details.

When the magical cookbook opens up to a map, the three protectors go on individual quests to save magic from disappearing forever.