This time it is not totaly millitary operation but multinational civilian expedition into unknown. Steping trough stargate and not knowing where they will land was first of many problems that was due for them. For first time stargate travellers reached Pegasus galaxy and are trying to establish permanent base there. Not only did they get strandled but they managed very soon after arrival, to alert ancient evil race Wraiths and by doing that they placed whole galaxy in harms way. Bit oversimplified plot for many joys this series offer. In five seasons from 2004 till 2009 cast made of Joe Flanigan as Lt.Col. John Sheppard, Rachel Luttrell as Teyla Emmagan, David Hewlett as Dr. Rodney McKay, Jason Momoa as Ronon Dex, Torri Higginson as Dr. Elisabeth Weir Paul McGillion as Dr. Carson Beckett and David Nykl as Dr. Radek Zelenka did brilliant job. Their great performances were only enhanced with many stars from SG1 showing up here and there. Atlantis has bit darker atmosphere but it is really hard to find spinoff made as good as this one. Blend of brilliant new story, new galaxy ,new enemy and most of all new team actually really expanded original stargate universe even further. McKay and Sheppard come to new planet. Rodney says there is something emiting energy behind that hill, Sheppard says Lets check it out. And they always end up in troubles but it never gets boring. I will say it again, very rare for spinoff so you Dear reader should definitley Check Atlants out if you havent already.