The complete first and second seasons of the US sci-fi drama. When 'Visitors' from outer space land on Earth, their leader, Anna (Morena Baccarin), explains that they will offer medical information and cutting-edge technology in exchange for supplies. FBI agent Erica Evans (Elizabeth Mitchell) soon realises the Visitors' true intentions are to take over the world. She joins a group of fighters that are determined to protect their planet. Episodes comprise: 'Pilot', 'There Is No Normal Anymore', 'A Bright New Day', 'It's Only the Beginning', 'Welcome to the War', 'Pound of Flesh', 'John May', 'We Can't Win', 'Heretic's Fork', 'Hearts and Minds', 'Fruition', 'Red Sky', 'Red Rain', 'Serpent's Tooth', 'Laid Bare', 'Unholy Alliance', 'Concordia', 'Siege', 'Birth Pangs', 'Uneasy Lies the Head', 'Devil in a Blue Dress' and 'Mother's Day'.