This game is set between the late 1890s and the 1930s where a hole in the space-time vortex continuum (or whatever scientific mumbo jumbo you decide is most feasible to explain why Victorian/Edwardian-era hunters are running around doing their best to kill off the Dinosaurs before anything else does) has allowed hunters to travel into a land where dinosaurs still live and hunt them.
The game is a tongue-in-cheek affair, and should be viewed as a fun "beer and pretzels" kind of game. It has been designed with solo or group play in mind.