Elsewhere these boxsets are £15 (ish) cheapest
Star Trek Deep Space Nine (9): Complete Season 1: 6DVD: Slimbox
In this first instalment of the STAR TREK spin-off, Benjamin Sisko (Avery Brooks), commander of the starship Deep Space Nine, discovers the first known stable wormhole--a virtual shortcut through space that leads from the Alpha Quadrant to the Gamma Quadrant on the other side of the galaxy. The Gamma Quadrant is governed by the Dominion, a group led by the Changelings--a group of shape shifters which counts DS9 crew member Odo (Rene Auberjonois) as one of its own. The Dominion has become a violent force in the galaxy, and the Deep Space Nine and its crew is the only hope of upholding the way of life established by the Federation. This collection includes all nineteen episodes from the first series.