Helena Walker is an Australian paleontologist on 21st-century Earth who is recently widowed. One night she awakens to find herself in the middle of a vast ocean, washing up on the shore of a strange island.

There she befriends a wild dodo, only to learn it is being targeted by a tribal hunter named Bob. After discovering the two arrived to this world in the same manner, Bob teaches Helena the way of survival.

In a strange new world filled with prehistoric beasts, foreign technology, and warring tribes, Helena must do whatever it takes to survive and find a way back to her world.