An expedition into the interior of Papua New Guinea comes across a tribe of ape-like people who may or may not be ancestors of early man.

Suspecting that a safari guide is a wanted killer, undercover policeman Geoffrey Bishop (Richard Fraser) joins a safari led by the suspect for a scientist that hopes to find and prove that a fabled white gorilla is a missing link.

In the 1930s a trio of unlikely adventurers set off to find a heretofore uncharted land. It has existed in stories and myths for centuries and is believed to be somewhere around the North Pole. Hounded by an overambitious agent of the USSR, the explorers end up finding much more than they ever expected.

Quando um grupo de jovens desembarca acidentalmente em uma ilha desconhecida, eles descobrem que os habitantes não são humanos e pouco amigáveis. O namorado de Anna, Tom desaparece, o que leva o resto do grupo para a selva para tentar achá-lo. Estranhas criaturas aparecem e começam caça-los e aos poucos todos vão desaparecendo. Após assistir a morte de Tom, em uma das muitas cavernas espalhadas pela ilha, Anna reúne todas suas forças para enfrentar uma das criaturas e assim poder fugir dos horrores que esta misteriosa ilha esconde.

Dr Michael O'Brien is a celebrated palaeoanthropologist, but his recently-published book has drawn ridicule from academics while being hailed by crazy conspiracy theorists. With his party-animal sister Alyssa, and her latest boyfriend Dante, he retreats to a rural outback where he obsessively pursues the unorthodox research that led his colleagues to shun him. Here, he makes a mind-blowing discovery that may rescue his career. Trapped in isolation, four flawed characters grapple with their awesome responsibilities and the delusional idea that we humans are the master species.

Prof. Alonzo Bozzle, an eccentric zoologist, has taken up the study of evolution as promulgated by Darwin and is pondering especially on the idea that there is a "missing link." One night he dreams that he is an explorer and that he has just landed upon a foreign shore; he secures the aid of a mahout and an elephant to move his tent and belongings to the jungle, where he will take up the study of trying to find the "missing link."