While at Kamp Koral for a reunion, SpongeBob and the gang are stalked by a mysterious figure lurking in the shadows as campers start disappearing one by one!
When their trip to San Lorenzo takes a turn for the worst, Arnold and his classmate’s only hope of getting home is retracing the dangerous path that led to Arnold's parents' disappearance.
On Halloween night, two precocious little girls try to save their parents from their nasty old capitalist aunt's greedy clutches. Magic abounds and they meet mysterious new friends along the way.
At camp, the boys find themselves consistently losing games to the girls. But their fortunes may change when Snoopy assumes the role of The Masked Marvel, potentially turning the tide in their favor.
Skylar finds out that her parents are monster hunters after she accidentally releases some monsters from a secret containment chamber; so she and her techno friends must recapture all the monsters and also save her mom and dad from these monsters who are out for revenge.
As Marshall, Gilbert and Amy are preparing for her father’s Spooktacular Halloween-themed wedding to his fiancé Carl, plans go awry when they discover that their mummy friend Harold and his beloved Rose may be in danger.