In Ghost Adventures: Aftershocks, Zak invites the most memorable characters from the series to Las Vegas to update viewers on how their lives -- and their ghosts -- have fared since the GAC paid them a visit. The guests recount how things were before the lockdown and how their lives have changed since. Have ghosts returned to do these people harm? Has their approach to the spirits changed? What questions are still left unanswered that the guys might help them solve? In some cases, paranormal teams that have investigated episode locations after the Ghost Adventures team bring their own evidence and insight to the table.