Casper Meets Wendy

The Ghostly Trio unleash panic at a local baseball game, sending fans fleeing in terror. Casper's attempts to calm the crowd fail, and the park quickly empties as chaos spreads. After watching the effect with satisfaction, Casper's uncles decide to plan a vacation.

The Oracle in the Mirror reveals that a good little witch named Wendy will surpass Desmond in the future. Desmond Spellman resolves to eliminate her with the Mystic Abyss, a dangerous dimensional rift. He creates two spies, Jules and Vincent, to bring Wendy to him.

Jules and Vincent reach Wendy's country home to escort her to Desmond, but she narrowly escapes with her aunts. They hide and soon vacation at the same resort hotel where Casper and his uncles are staying, hoping the distance buys them time.

Wendy befriends a boy named Josh Jackman, but his true colors show when he pushes a girl away from an arcade game and ignores Wendy. The moment dampens her spirits but does not entirely extinguish hope. The resort atmosphere keeps things lively while danger looms nearby.

Casper and Wendy meet in a barn and quickly form a friendship, despite the fear their guardians might clash since ghosts and witches are natural enemies. They plot to introduce their guardians at a party so the two groups can meet. The budding alliance becomes the anchor of the plan to keep Wendy safe.

To bring the two groups together, Casper enlists the Ghostly Trio to possess three men who resemble them at the party. Wendy convinces her aunts to attend the party, hoping to meet potential partners while staying hidden from Desmond. The plan hinges on successful disguises and timing.

At the party, the disguises briefly work as the trio flirt with the witches posing as regular guests. When the possession wears off, the ghosts' true forms are exposed to Wendy's aunts, who react with anger and threaten the witches with magic. The fear of exposure drives tensions higher.

Wendy explains that she and her aunts cannot use high-level magic, or Desmond will locate them. The Ghostly Trio suspect Casper is protecting the witches and pressure him to reveal their constraint, which leads to renewed harassment. The sense of imminent danger tightens the group's resolve to stay hidden.

Desperate to thwart Desmond, Wendy casts a spell to plaster the trio, effectively neutralizing them but also tipping off Desmond to their location. The moment marks a turning point as the hunters become the hunted and the stakes rise dramatically. The trio's plastered forms become the symbol of their complicity in protecting the witches.

Casper breaks his promise and warns the uncles as Desmond and his spies arrive to confront the witches. Desmond attempts the Mystic Abyss spell to trap Wendy, who is cast into the Abyss alongside Casper. Inside, Wendy apologizes to Casper for ending their friendship as they search for a way out.

A giant three-eyed monster emerges inside the Abyss, frightening Desmond and revealing it to be the Ghostly Trio in disguise with a change of heart. They help hold the door open while Wendy's aunts pull Wendy and Casper out of the Abyss. Their risky act saves both witches and ghosts from Desmond's grasp.

Casper and Wendy surface unconscious from the Abyss, only to be revived and comforted by their guardians. The aunts and uncles mend the rift between the two groups as Wendy and Casper reunite, their friendship rekindled. The Oracle proclaims Wendy the greatest witch for befriending a ghost.

After a heartfelt reunion, Wendy and Casper say their goodbyes with a promise to reunite soon. Wendy departs with her aunts, giving Casper a goodbye kiss that makes him blush. The danger fades as both groups acknowledge their new friendship and look forward to a future meeting.