In the series pilot, scientist George Challenger (Peter McCauley) learns of a prehistoric world from a dying colleague, and leads an expedition to find it. Part 1 of two. Roxton: William Simon. Marguerite: Rachel Blakely. Summerlee: Michael Sinelnikoff.

Conclusion of the series pilot. When Challenger's party becomes stranded in the prehistoric world, Marguerite plots to betray a young native woman to ensure their escape. Veronica: Jennifer O'Dell. Summerlee: Michael Sinelnikoff. Malone: David Orth. Marguerite: Rachel Blakely.

To prove the existence of prehistoric life, Prof. Edward Challenger leads his lost expedition team in a dangerous, exotic land. In this episode, Roxton is captured in an underground world where humans are slaves of the descendants of dinosaurs. In order to escape, he must lead a revolt. Peter McCauley, William Snow, Jennifer O'Dell, Rachel Blakely, David Orth.

Determined to prove the existence of prehistoric life, Prof. Edward Challenger leads his lost expedition team into a dangerous, exotic land. In this episode, Summerlee (Michael Sinelnikoff) lies near death after being stung by a giant bee. To save their comrade, Roxton, Veronica and Malone must make a dangerous journey to steal the only possible cure: the nectar of the queen bee.

Prof. Edward Challenger (Peter McCauley), determined to prove the existence of prehistoric life, leads his lost expedition team in a dangerous, exotic land, and is captured by warriors ruled by the widow of a fellow explorer who died on the island 12 years earlier. To earn his freedom, he must face internal demons. William Snow, Michael Sinelnikoff, Jennifer O'Dell, Rachel Blakely.

In this episode of the fantastic adventure, Prof. Edward Challenger (Peter McCauley) must defend Summerlee (Michael Sinelnikoff), who is branded a devil by the high priest of a fervent tribe after saving a little girl from drowning in a lake. Challenger must save Summerlee from being burned at the stake. Jennifer O'Dell, William Snow, David Orth, Rachel Blakely.

Determined to prove the existence of prehistoric life, Prof. Edward Challenger (Peter McCauley) leads his lost expedition team in a dangerous, exotic land. In this exciting episode, Roxton becomes bloodthirsty after being bitten by a crazed young man. Shanyn Asmar, William Snow, David Orth.

To prove the existence of prehistoric life, Professor Edward Challenger (Peter McCauley) leads his lost expedition team in a dangerous, exotic land. In this episode, strange Druids send Marguerite (Rachel Blakely) on a quest to recover a mythic stone that will help them---and her---fulfill their destinies. Jennifer O'Dell.

Determined to prove the existence of prehistoric life, Professor Edward Challenger (Peter McCauley) leads his lost expedition team in an exotic land. In this episode, the team encounters a seductive paradise---where their loyalties are tested. While Marguerite (Rachel Blakely) is tempted by the prospect of eternal life, Veronica (Jennifer O'Dell) searches for her lost parents. William Snow, David Orth.

Determined to prove the existence of prehistoric life, Professor Edward Challenger leads his lost expedition team in a dangerous, exotic land. In this episode, Malone is torn by guilt after the empathic shaman who healed him is sentenced to death by his fellow villagers. David Orth, Jennifer O'Dell, Rachel Blakely, Peter McCauley.