Cassie and Sam's much overdue date doesn't go as planned, and they end up stranded on an island.

Cassie, Abigail and Joy learn the origins of the pouches of soil but have more questions than answers. Cassie and Sam's double date with hospital administrator Grant and his girlfriend, Monica, doesn't go quite as planned. All of Middleton flashes back to the '50s when Martha organizes a "Grease" themed movie night in the park that ends with a surprise romantic gesture.

Sam is excited to perform surgery on a star basketball player. Joy makes a discovery and decides to revive the Middleton Exchange tradition.

Joy's dream sends the three Merriwicks on a search for Phillip Harper, Joy's father.

When Cassie, Abigail, and Joy toss coins into the historic wishing well, wishes old and new start coming true.

As the Merriwicks delve into the images on Joy's vision board, Cassie accompanies Sam on a trip to his childhood home to care for his sister.

Cassie and Sam are disagreeing about his return to work after his shoulder surgery. Flower Universe is trying to undercut Abigail's business, but she won't go down without a fight. Martha and Tom's special anniversary celebration brings all their friends together.

The pressure is on because strange things start happening to Cassie, Abigail and Joy's abilities, adding urgency to finding a Merriwick family heirloom.

Cassie, Abigail and Joy get ready to face the mysterious force that threatens the Merriwick family legacy. Series finale.