Episodes 1 and 2 (One Hour Special) by BakaNeko:
http://www.point-blank.cc:16384/allo...5D.mp4.torrent

"Based on the popular manga by Hideaki Sorachi.

Sakata Gintoki is a samurai living in an era when samurais are no longer needed. To add to his troubles, oppressive aliens have moved in to invade. Gintoki lives with Kagura and Shinpachi, taking on odd jobs to make the world a better place...and to pay their rent."

http://www.j-gintama.com/
http://www.animenewsnetwork.com/ency...me.php?id=6236
http://anidb.info/perl-bin/animedb.p...anime&aid=3468
http://www.animenfo.com/animetitle,3...b,gintama.html