Cassie and Sam's wedding is just days away and as the town of Middleton prepares for this highly anticipated event, Grace is troubled when wedding related hiccups keep occurring. Abigail opens up to the idea of handing her mayor responsibilities over to Martha, but a handsome stranger puts a wrench in her plans. Meanwhile, Stephanie finds herself smitten.

Cassie and Sam's wedding day has arrived and Sam doubles his efforts to find the Forever Tree. He gets a magical assist from Grace, who's nostalgic for her late father. Mayor Abigail makes a surprising ally while Martha finds a new passion. Nick takes a step toward finding his calling.

While honeymooning, Cassie and Sam help a new friend reconcile with her brother. Grace attempts to speed up time after a break-up. Sparks fly between Abigail and Blairsville's mayor. Martha freezes at her TV audition. Nick ghost hunts at Grey House with a friend, who's looking for more than spirits.

Cassie hosts a guest with a surprising secret. Sam's visiting friend needs medical expertise but the cure may lie in Cassie's intuition. Grace interns for Martha at City Hall and faces competition from a fellow intern. Martha prepares the first episode of her show, and Stephanie considers her romantic options.

Cassie uses her enchanting powers - and tea - to help Abigail open up to Donovan. Mayor Martha critiques an artist painting her portrait. Sam's new resident needs a lesson in bedside manner. Grace is disappointed after being rejected by her top college choice, while Nick's confidence wavers after his acceptance.

Cassie's being honored by her alma mater and visits with Grace, who's considering enrolling. Grace bonds with her weekend host, while Cassie reconnects with her college friend. Needing a break from Donovan, Abigail joins. At Grey House, Sam tries to channel Cassie while helping his father-son guests communicate better.

Martha and her husband, Tom, visit Grey House. Cassie and Sam realize that they still have some things to learn about one another. Donovan's overbearing mother complicates his and Abigail's relationship. Grace and Luke go on their first date.

Cassie encourages Sam to keep his eyes open for mysteries to unlock, just as Martha unearths a long lost town charter with a hidden treasure map. Vincent heads out in search of the treasure, leading to an unexpected competition with another treasure seeker. Grace is hurt when she learns that Luke had been spying on Abigail for his aunt Donovan's mother, Dotty. Abigail continues to spar with her, until a crisis makes her reassess her relationship with Donovan. Meanwhile, Adam helps Stephanie with the launch of her food truck.

Middleton prepares to make wishes on Posner's Comet, but Cassie worries that a wish won't control big changes ahead, specifically when Sam is offered a dream job across the country. Grace prepares for her valedictorian speech, while Nick becomes unexpectedly nostalgic as high school concludes. Abigail plans a trip to Europe to forget about her breakup with Donovan, while Donovan tries to disprove the power of curses and win her back. Meanwhile, Martha struggles to make amends with her nemesis, and Stephanie and Adam are overwhelmed when their food truck is an instant sensation.

Cassie and Sam prepare to send Grace and Nick away to college, joined by Nick's mom, who worries about his cross-country move to college. Grace spends her last days in Middleton helping a designer make a dress, and uncovering her true passion in the process. Stephanie and Adam balance a busy workload and their relationship. Abigail struggles to respond when Donovan shares his feelings for her, unsure if a curse may be to blame. Meanwhile, Sam and Martha continue the hunt for the Middleton treasure, lead ing to an unexpected discovery.