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.

A transport carrying members of the eight Klingon houses crashes while on the way to a refugee camp, and it’s unclear if Jay-Den Kraag’s family was among them. Meanwhile, the Doctor teaches the cadets about debate. And the cadets work on a solution to help the Klingon find a new home.

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.

Daram and Genesis battle each other to be the best and address their parental issues. Meanwhile, Caleb learns more about being a team and takes time to talk to Tarima about her decision to join the War College. And the cadets try out for the Calica team.

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.

The cadets take their first classes at the new Starfleet Academy. Meanwhile, Chancellor Nahla Ake leads talks to help the Betazoids, who became protectionists and isolationists after “The Burn”, return to the Federation.

Years after “The Burn” that caused massive destruction in Star Trek: Discovery, Starfleet Academy is set to reopen with its first new class in more than a century. But a space pirate intercepts the ship as it delivers the first cadets to Earth for training.

Carter is watching his girlfriend’s dog while she’s away, but Matt is hesitant to get close after Eve left for Korea. Meanwhile, Riley gets fed up with how territorial Matt can be, and Gabe and Amelie discuss moving in together.

Georgie and Mandy discuss Christmas plans and work plans while Audrey and Jim try to take the family on a big vacation. Meanwhile, Mary plans to take Missy to see Sheldon, but Missy doesn’t want to go.

Fagenbacher starts hitting back at Georgie and Ruben for their actions that hurt his tow truck business earlier in the season. He’s also got a deal that may be difficult to refuse.

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.

Sam needs to find a way to increase book sales, and it requires her to reconcile with Todd, the historian with a weird obsession with Alberta. Plus, Alberta lets the ghosts and Sam know about a section of her past where Todd can’t find any information.