Plot
Rick Marshall and his children Will and Holly are on a weekend expedition rafting down a river when an enormous earthquake diverts them to an eclectic alien world inhabited by dinosaurs, chimpanzee-like cavemen called Pakuni, and aggressive, humanoid lizard creatures called Sleestak.
Cast
Spencer Milligan
as Rick Marshall
Wesley Eure
as Will Marshall
Philip Paley
as Cha-Ka
Kathy Coleman
as Holly Marshall