The Russians are up to more of their sneaky tricks some 67 million years ago in the Cretaceous Period. Using stolen time travel technology, they send several teams back to capture meat-eating dinosaurs for a very devious purpose. They intend to unleash T-Rexs and Velociraptors on American cities.
In addition to the dinosaur attacks, the Russians have set up a base in 1248 A.D., Arizona, where they are using captured Apache slaves to grow opium. The plan is to flood the streets of America with cheap heroin and create an avalanche of new drug addicts.
Not to be out done, the United States send its own team from the newly created Time Travel Service to counter the enemies' efforts by catching their own dinosaurs for a revenge attack against Russian targets. The Americans also have the goals of destroying the enemies' bases and ending their ability to ever attack the U.S., again using the time travel technology that had been stolen from them.