Six signs. One destiny.
The Stanton family is re-located from their familiar and comfortable surroundings in America to a small and unfamiliar town in England. What they don't know is that the family actually has deep roots in the town -- several centuries deep. And the youngest son, Will Stanton (Alexander Ludwig) -- who is just trying to fit in at school and figure out how to talk to his crush - is the unlikely hero who finds himself thrust into an epic battle between the champions of the light and the sinister soldiers of the dark.
Will finds that he is actually the last in the line of warriors called the Old Ones who are led by Merriman (Ian McShane) and Miss Greythorne (Frances Conroy.) Each take Will under their wing to guide him on his journey as The Seeker where he will need to use his special powers to seek signs hidden throughout time to right the balance between light and dark.
As Miss Greythorne explains to Will -- he is "part of something that has been waiting for you all your life. We, the Old Ones, we serve the Light. The Rider, he serves the Dark. The Light creates, the Dark destroys. THE SEEKER, Will. It is you who must restore the power of the Light." His feeling of alienation mixed with deja-vu, she tells him, is part of the plan. "You are special, Will, a Stanton, returned to this place. The seventh son of a seventh son."
Setting off on the journey of a lifetime -- Will uses his powers to travel through time, make objects fly and exhibit supernatural strength to fight the evil who is represented on earth by the mysterious Rider (Christopher Eccleston.) As The Rider attempts to overcome the world with cold and darkness, Will battles with himself and all the dark forces that are being used against him to save the world. Although he questions himself and his abilities the Old Ones are there to reassure him that: "Even the smallest light can shine in the darkness."