"Forced into hiding by a global ecological cataclysm, humans emerge from their underground warrens half a millennium later to discover that the Earth has been totally transformed. All of the familiar flora and fauna are gone, replaced by a radically altered natural order populated by rampaging dinosaurs and strange new creatures. It takes guts, grim determination, ingenuity and a whole lot of old-fashioned luck just to survive, much less thrive, in this alien wilderness-all qualities that ace mechanic Jack Tenrec, lovely scientist Hannah Dundee and their friends possess in abundance. But even the worthiest of these hardy souls are hard-pressed to surmount the obstacles presented by their new homeland"--
