Jillian Henderson doesn't believe her father is really dead, and can't understand why no one is worried about the fact that important documents originated in the 1800's by her father's ancestor have gone missing. She is determined to find her father and the documents, but how? Then Samuel Gordon, a man from the past, accidentally steps into the present from between the cars of a miniature train in the center of town. When Jillian learns he's from the same time as her father's ancestor, she follows Samuel when he steps between the railroad cars and back to 1888. Intent on finding her ancestor...

Ophelia Giddings is at a new school with the ridiculous name of Crumble High. During a drama rehearsal, she attempts to rescue a kitten and puppy, but a ghost sends her back to 1943. She and another student, Cliff Thomas, must solve the mystery of why the school burned back in the 40s, or they won't be able to return to 2013. The action heats up with murder, a subversive group, and, apparently, more than one ghost. To add to the difficulties, both Cliff and Ophelia have to assume the identities of a grandparent, and try to remember not to reveal their real identities. Getting the last piece...