David is a successful city trader in London who is relentlessly focused on work. Beneath the confident facade, he is trapped by memories of the past and hostile to anyone who dares to help. Flashbacks reveal a childhood in South Africa at the mercy of an inadequate bully of a father Donald and an ineffectual mother Joanne. The physical and sexual abuse he suffered threatens any chance of happiness he might have now.

When his clan, including his wife and baby girl Néa, are massacred, Ao, a desperate Neandertal man, decides to leave the North country where he has been living for the South where he was born. His aim is to join his twin brother, from whom he was separated when he was nine. On his long and adventurous way home, he meets Aki, a Homo Sapiens woman...

A medicine man is sent looking for the son of his tribal king, and brings back an American golfer and a host of goons intent on keeping him in the golf tournament.