"Good Witch" takes you on a magical journey with Cassie Nightingale, her daughter Grace and their cousin Abigail. All three charm their way through the town of Middleton, causing harmony and disharmony, but always touching lives. So when Dr. Sam Radford moves in next door to the mysterious Grey House, he soon discovers Cassie's signature charm is more than just a magic touch.
The whole town anxiously awaits the impending blooming of the Middleton Merriwick, but when the plant is cut, it has dramatic impact upon the Merriwick women; Grace begins to suspect Nick is going to ask her out.
The Middleton Merriwick is still not in bloom, and the effects are being felt around town. An old friend and colleague of Abigail’s checks into Grey House claiming to want a relationship. With help from Cassie, Ben stumbles upon the old Middleton Theater and is motivated to get the place running again.
Two guests at Grey House are immediately at odds, so Cassie uses her magic to bring them together. Sam tries to plan the perfect date for Cassie, but various nuisances keep getting in the way.
Cassie helps Ben find an old romantic film to showcase at the refurbished Middleton Theater's opening night. Martha's promises to the town are in jeopardy when she overextends herself with the Middleton budget.
A visiting chef can't relax, so she follows Cassie's advice and spends a day stirring a recipe in order to quiet her mind. Grace is presented with the Merriwick Wish Book for her birthday and is encouraged to make an entry.
Abigail, jealous of all the attention Cassie gets from helping her customers, decides to sell “special” chocolates at her flower shop.
Cassie invites a traveling artist to stay at Grey House, so he can can get some hard needed new inspiration.
Cassie decides to plan a surprise party for Sam to celebrate the anniversary of his move to Middleton; Grace (with some urging from Abigail) decides to use her powers to create situations where she and Noah can get together.
Cassie discovers a 10-year-old girl playing in the bushes at Grey House; Martha announces that her son Michael is getting married; Sam's sister shows up for an unexpected visit and he is very happy to see her, though she does not seem like herself.
Cassie gives those around her pieces of jewelry that magically turn out to be just the thing each have been needing. In search of an engagement ring for Cassie, Abigail helps Sam search for the perfect one-- a legendary Merriwick heirloom that was thought to be lost forever.
A mysterious song magically spreads across Middleton.
Abigail's father comes to Middleton in hopes of making amends. Cassie helps an expecting couple accept how different their lives, and family, will be once the baby comes. Grace is forced to think about her future and what path she'll follow as she realizes her affinity for math might not be a passion.
Cassie and Sam bring Grace and Nick for an overnight at the lake house, hoping time together will help the kids resolve their differences and help the soon-to-be family bond, but Cassie faces a few obstacles before they start acting like a family again.
Grace finds herself under the spell of Elizabeth Merriwick after Cassie discovers an old trunk filled with her vintage clothing. Inspired by its history, and tapping into her Merriwick heritage, Grace finds a passion for storytelling. Meanwhile, Cassie helps a mother and daughter reconnect over their past at Grey House.
A secretive dating app developer on the verge of a breakthrough checks in at Grey House, capturing the entire town's interest-- especially Abigail's.
Cassie has to confront what "'til death do us part" means for her relationship as Sam travels to South America as additional medical aid during a tragic time. Grace digs up some of Middleton's earliest history while revising the town's website, and Abigail shares the same history with her budding romance, Phil.
Cassie sets out to track down Elizibeth Merriwick's original wedding dress, learning a bit from every woman who wore it. Grace and Noah hit a snag in their relationship as Abigail and Phil start to ramp up theirs.
Grace, in a true Middleton tradition, enlists the help of the town in making a magical quilt that's said to grant the wishes of the recipient—and seemingly all that contribute to it. Cassie and Sam learn even more about each other as secrets are revealed.
After a series of unfortunate events, Sam and Cassie have to accept that their wedding might not be as perfect as planned; in light of her almost-romance with Phil, Abigail's quest to put down roots lands her a new job as the mayor of Middleton.
In the second-season opener, Cassie and Sam try to embark on a romance, but his ex-wife halts this new adventure. Meanwhile, Grace prepares to take her driving exam.
A man from Cassie's past arrives in Middleton, but reminiscing about old times may put a halt to a future for her and Sam.
As Cassie's old friend John attempts to unearth their shared college memories, the Good Witch receives another visitor from her past when Ryan returns to Middleton seeking closure.
Cassie can't help but feel upset after Grace admits she's been spending more time with Sam to replace the hurt she feels from the loss of her own late father.
Cassie is surprised with adventurous outings by both Sam and John as she works on sorting out her conflicted feelings.
Cassie could be ready to take a chance on her feelings for Sam; Grace goes on a magical mission to fix a broken confidence.
Cassie begins to conjure up a surprise party for Martha, but when she enlists the help of Stephanie and Abigail, she learns her secret might not be safe.
Cassie works her magic to help Sam make a tough decision and suddenly she is faced with a difficult choice of her own.
Just as Cassie begins to move in a new direction with Sam, Middleton’s annual Lights Festival brings illuminating changes.
As the winter storm continues to pose a threat to all of Middleton, Cassie and Sam work together to save a life and a crisis magically brings them closer.
When Middleton's enchanting "Good Witch" Cassie receives devastating news about the future of the Bell, Book and Candle, the whole town will come together to prove a little bit of magic goes a long way.