When the first Spooky appears in the sleepy Australian town of Sunny Valley, it's up to 10-year-old Spookyphile Bert, his inventive best friend Xena and his new sister Billie, to catch it.
When the students of Sunny Valley Primary act strangely during a STEM competition, Bert is torn between investigating a potential Spooky and helping his new stepsister Billie win Eggvention.
The Spooky Crew find a Clown Face Spooky at the Sunny Valley Fete and must capture it before it reduces everyone to giggles - but the new Spooky Crew recruit, Billie, is terrified of clowns.
When the crew find a Spooky whose fairy dust makes people sneeze out the truth, they struggle to keep their Spooky mission a secret. Meanwhile, Jane and Ed have big news for the future of their instant family.
Xena tries to figure out how to send the Spookies home, while the Crew face off with a Bone Chilling Spooky - and Robina gets closer and closer to discovering their secret.
The Crew have one day to open the portal to send the Spookies home and make it to Ed and Jane's wedding, but chaos ensues when a familiar face turns up uninvited.