St. Patrick’s Day rolls back around meaning Hetty is once again visible and that causes major issues for Jay’s restaurant. Meanwhile, Bela is sleeping all the time and it has Jay worried about her mental health.

Maddie and Wally make their way through the afterlife behind the doors in an effort to find Simon. Meanwhile, Van Heidt continues to do everything he can to ensure the school is destroyed and he finally gets the land he’s always wanted.

Simon is missing after what happened in the church scar, and the ghosts are searching for clues. Meanwhile, Xavier and Maddie are headed to the hospital with KC Jensen’s body in an effort to keep him alive. And they are drawing the suspicion of Superintendent Hunter-Price.

Sam and Jay are seeking to get their B&B on an important list of luxury places to stay, but the reviewer is very picky, so they give him a gift that may be more problematic than helpful. Meanwhile, Thor and Flower have a fight that leads to them enlisting Pete as a couples counselor.

Simon and the rest of the ghosts head back into the scar to try to learn more about White Eyes as they realize he’s likely not Arthur Van Heidt. Meanwhile, Xavier and Maddie learn where Kyle’s body is now and how they can communicate with this spirit.

Simon keeps getting visions of the past from the tall, white-eyed ghost trapped in the church. Meanwhile, Maddie, Claire, Nicole and Xavier go to the festival at the school to learn more about the town’s history and time may be running out for the ghosts at the school.

Patience brings her friends from the dirt and they have a connection to Flower’s past. And these ghosts cause new issues for the potentially blossoming relationship between Trevor and Patience.

Simon and the ghosts determine the place in the hole in Mr. Martin’s scar is actually a church rather than a house. Meanwhile, Maddie, Xavier, Nicole and Claire are stuck in detention while the rest of the class goes on the Senior Trip. And Mr. Martin and Quinn experiment and temporarily lose their inhibitions.

Knowing that Mr. Martin was visible to the bus driver the night of the crash, the ghosts and Simon discuss how the evil entity in Mr. Martin’s scar is able to lift the veil. Meanwhile, Nicole continues trying to infiltrate Livia’s inner circle. And Xavier helps Maddie get some closure.

Maddie is being targeted by bullies as she tries to navigate her senior year. Simon continues searching for a way out of the school. And questions arise about the bus crash that killed members of the band back in 2004.

Maddy is back in her body, but now she has to readjust to being alive again. Simon is now stuck in the school, but he’s clearly not a ghost. And the Superintendent arrives to shut down the high school raising questions about the ghosts’ futures.

Merry Ghostmas. Sam’s podcast interview with Todd gets attention for her book and she gets to conduct a live interview. However, Thorfinn has a special Christmas gift for Flower that could derail the entire interview. Plus, Sam gets a special visitor.