Episodes 1.12 and 1.13 (UK): Sundown, parts 1 and 2
Update 3/21: The ToonZone site now has recaps of both parts.
I didn't realize that when Cartoon Network UK started airing the Legion series, it would be on a daily basis. So they just got the first episode on March 5, and the season finale is today and tomorrow.
Update: Scott at Legion Clubhouse tells us that the US appearance of the finale will be April 28 and May 5.
If you want to read a detailed account of both episodes, check out the recaps in the ToonZone forum. I haven't read it, so don't spoil it for me in the comments!
I expect the torrents to be out in the next few days.