Obi-Wan Kenobi is no longer a Jedi.  He has chosen instead to be a part of the revolution on the planet Melida/Daan.  His Master, Qui-Gon Jinn, has gone back to Coruscant, where trouble is stirring inside the Jedi Temple.
Obi Wan takes comfort in his friends, the other leaders of the revolution.  Together they have power--perhaps too much power.  As the revolution continues, friends become enemies, and Obi-Wan's path grows more and more uncertain.  Qui-Gon is no longer around to help him.
Obi-Wan is on his own.