Episode 109. an ep. or two later is when Sasuke retrieval arc. begins.
HE WANTED TO GET POWER FROM OROCHIMARU AND KILL ITACHI
Sasuke apppears in the first episode
Sasuke has not died yet.
Sasuke joins Orochimaru in the end of episode 109 but everyone(except Sakura) finds out in episode 110
Episode 117
episode 1001
Episode 211
He and the other sound ninja fight Sasuke in episode 109 (An Invitation from the Sound).
Kabuto try to kill sasuke in "Naruto episode 51."
No he ddoesn't. Sasuke is still alive.
that episode does not exist
episode 203