The below description is taken from LEGO.com.
From Allosaurus to Zuniceratops, Iíve caught Ďem all!
You never know when wild dinosaurs might pop through a time portal or escape from a crazy scientist’s lab. When pesky prehistoric reptiles go on a rampage, thereís only one person you need to call: the daring and dauntless Dino Tracker!
As a member of an elite team of dinosaur hunters, the Dino Tracker has the gear, the experience, and the know-how to take down plant-eaters and carnivores of any size. Moving swiftly and silently, she sneaks up close and then fires a tranquilizer arrow to knock out her titanic targets so they can be picked up and transported to the dino nature reserve. She might get a few scuffs and scrapes along the way, but itís all in the name of keeping both civilians and saurians safe!