A young boy, who dreams of meeting the grandfather he never knew gets his chance, when an inventor friend constructs a time machine. After arriving in the past, it soon becomes apparent that his knowledge of the future could change the course of history.

Peter Coyote
as Max Knickerbocker

Huckleberry Fox
as Jonathan Knicks

Art Carney
as Henry Coogan

Dennis Lipscomb
as Finch

Joe Flood
as Leary

Mittie Smith
as Helen Knickerbocker

Frank Simons
as Young Coogan

Stu Klitsner
as Mr. Knicks

Morgan Upton
as Police Captain

Stephen Prior
as Little League Boy