Ishbo is a caveman living in the prehistoric age who thinks there's more to life than hunting and gathering. He tries to better the lives of those in his tribe by inventing things like spoons and the toothbrush, which leave everyone, including his parents, unimpressed. He also has a thing for cavewoman Fardart, but she only has eyes for his brother Thudnik. Can Ishbo prove his worth when a rival clan attacks?
Adam Rifkin
as Ishbo
Ali Larter
as Fardart
Talia Shire
as Ishbo's Mother
Hayes MacArthur
as Thudnik
Gary Busey
as Krutz
Giuseppe Andrews
as Zig
Miles Dougal
as Zog
Tom Hodges
as Bork
Ron Jeremy
as Oog
Bill Tyree
as Old Fool
Carol Alt
as Queen Fallopia
David Carradine
as Mookoo / Uncle Unky