For anyone that still goes to this site, here's episode 13 of naruto shippuden.
Naruto Shippuden episode 13 part 1
Naruto Shippuden episode 13 part 2.
Naruto Shippuden episode 13 part 3
Itachi makes his first appearance in Naruto Shippuden in this episode and going to fight Kakashi, Sakura, Naruto, and an old lady.
Gai, Rock Lee, Neji, and Tenten fight Kisame.