When physicist Michael Shelborne mysteriously vanishes, his son Shel
discovers that he had constructed a time travel device. Fearing his
father may be stranded in time--or worse--Shel enlists the aid of
linguist Dave MacElroy to accompany him on the rescue mission.
Their journey through history takes them from the enlightenment of
Renaissance Italy through the American Wild West to the civil-right
upheavals of the 20th century. Along the way, they encounter a diverse
cast of historical greats, sometimes in unexpected situations. Yet the
elder Shelborne remains elusive.
And then Shel violates his agreement with Dave not to visit the future.
There he makes a devastating discovery that sends him fleeing back
through the ages, and changes his life forever.