Homo Erectus

Geeky, nerdy caveboy Ishbo (Alan Rifkin) wants sexy cavegirl Fartak (Ali Larter)as his cavewife. Unfortunately for Ishbo, his studly brother Thudnik (Hayes MacArthur ) (and no I'm not making these names up!) in a true caveman seduction style clubs Fartak into submission and now the sexy Fartak and studly Thudnik are a duo. Dejected Ishbo tries to prove his courage, fails miserably and then faces loss as his and Thudnik's father is killed and Fartak is kidnapped by a rival tribe. Ishbo's deep love for her causes him to try and track her down and rescue her. In the process he comes across an Amazon tribe of women, the rival tribe and finally his beloved Fartak.