Harley knows her grandparents are sick, but what she doesn't know is that the four of them will take turns going to the bathroom in their vacation trailer when she comes to visit.
None of it makes sense and sends her into a panic until her Nana, the last to make the leap, explains to her that the bathroom in their getaway home is not only that, but a portal to the afterlife.
For years they had been the secret keepers of this portal, but now, in their time to enter, leaving life behind for the land of the dead, that responsibility has fallen to Harley.
Beyond the shock, there is only one problem with the plan, Harley's little brother Malcolm has accidentally disappeared along with them after he hid inside a bag on wheels.
Now, suddenly, some very important decisions must be made, as not only will their parents arrive to join the vacation the next morning, but if Malcolm stays in the land of the dead for 24 hours, he will be trapped there forever, unable to...