The crew of the colony ship Covenant, bound for a remote planet on the far side of the galaxy, discovers what they think is an uncharted paradise but is actually a dark, dangerous world.
A boy haunted by visions of a parallel world aids its disillusioned guardian in preventing the destruction of the nexus of universes known as the Dark Tower.
In the prehistoric past, Keda, a young and inexperienced hunter, struggles to return home after being separated from his tribe when bison hunting goes awry. On his way back he will find an unexpected ally.
