Mansion of Mystery - Season 4 (2018)

CJ attempts to socialize his new monster friend, Adam. Unfortunately, this doesn't endear either of them to the neighbors, especially Sgt. Wednesday, whose home is being destroyed by Adam's clumsy attempts to fit in.

Sgt. Wednesday, on suspension from the police force, partners with Nick Shyster to start a detective agency.

Scarlett and CJ head to Monster Bash in Mars, PA for a day of fun. They encounter several friends, as well as CJ's most deadly enemy.

CJ tries to sample the milkshakes at a local food truck, against Scarlett's advice. But he isn't having much luck. The milkshakes keep disappearing, as do the neighbors.

When Scarlett receives a call that Mittens is caught on one of The Mansion's window ledges, CJ reluctantly stages a rescue. Mittens immediately scampers down, but CJ is stuck when EBDC closes the window behind him.

As Scarlett prepares The Mansion for trick-or-treaters and CJ sets off to entertain children at the local elementary school, Sgt. Wednesday frets over a flood of Halloween pranks. Is it EBDC, who is out with his nanny? Ralphie? Or someone else?

Sgt. Wednesday arrives at The Mansion to mistakenly arrest Scarlett for the attack perpetrated by her sister Sapphire on Halloween night and ends up conjuring up the spirit of The Mansion's former owner, film star Bette Crawford.

As Scarlett and CJ host a Christmas special, EBDC writes to Santa, Sgt. Wednesday pops in to sing carols, and, aboard the Ambush Bug, Tripp Punter makes a call to someone back home. And then Cousin Rhinestone pops in via Skype.