Get ready for an intergalactic adventure with Stargate Atlantis Season 4 Disc 2 Only Replacement DVD. This sci-fi TV series is a must-have for every fan of the genre. The DVD format and Region Code (DVD: 1) are perfect for US and Canada residents. The Type is TV Series and Genre is Sci-Fi & Fantasy, with the Sub-Genre of Aliens. This replacement DVD is perfect for collectors and binge-watchers alike.