A mysterious force has set up shop in the distant past, and is doing everything in its power to ensure reptiles - particularly, dinosaurs - remain the planet's dominant life for good. Erma is our completely unwitting heroine, and it's your job to help her help us!

A mysterious force has set up shop in the distant past, and is doing everything in its power to ensure reptiles - particularly, dinosaurs - remain the planet's dominant life for good. Erma is our completely unwitting heroine, and it's your job to help her help us!