In the year 2149, the world is dying. The planet is overdeveloped and overcrowded, with the majority of plant and animal life extinct. The future of mankind is in jeopardy, and its only hope for survival is in the distant past. An ordinary family goes on an extraordinary journey back in time to prehistoric Earth as a part of a massive expedition to save the human race.

Jonah is a hitman by trade and a man on a mission of revenge. But things go horribly wrong whilst trying to escape the police.

As World War II rages, the elite Sixth Ranger Battalion is given a mission of heroic proportions: push 30 miles behind enemy lines and liberate over 500 American prisoners of war.

Early 20th-century adventurers find themselves fighting for survival after their hot-air balloon crashes into a remote part of the Amazon, stranding them on a prehistoric plateau.