An Australian couple takes a sailing trip in the Pacific to get over the recent loss of their son. While on the open sea, they come across a sinking ship with one survivor who is not at all what he seems.
Early 20th-century adventurers find themselves fighting for survival after their hot-air balloon crashes into a remote part of the Amazon, stranding them on a prehistoric plateau.
In the future, a health nut and his tag-along girlfriend become trapped in a drive-in theater that has become a concentration camp for outcast youths.
