Love/Hate and Grabbers star Ruth Bradley is to play the lead role in the pilot episode of a planned new sci-fi series for the USA Network called Horizon.

The Hollywood Reporter, which broke the story, says that Bradley will play Lauren Howl, an FBI secretary during World War II who discovers that her husband may have been killed in a battle with a spaceship in the South Pacific.

She then becomes the only person who can save Earth from an alien invasion.

Bradley will soon be seen in the film adaptation of John Banville's Man Booker Prize-winning The Sea.