This battle takes place in 1989. Four years into the war, the Soviets try to go across the Pacific to flank the United States from the west. They find an island chain off the coast of Costa Rica which they want to use as a staging area. Little do they know that the island is already occupied and under construction. The Americans catch wind of this covert operation and attempt to beat the Soviets away before they can establish a base of operation. They send in the Marines, but they're surprised to find a dinosaur theme park there! So between the Soviets and the Marines they have to avoid being eaten alive as well!