A New Squad! Two People and a Dog?!

is episode 144 of the original Naruto anime.

Synopsis
Naruto is having trouble with the two brothers, and Iruka is having his share of difficulties with Mizuki. Iruka struggles to try to get the old Mizuki back, but Mizuki explains the only reason he was ever nice to Iruka was because he wanted to be the Hokage's favourite too. He wanted Iruka to be miserable, and not to have everyone else be so kind to Iruka and not himself. Iruka and Mizuki then prepare to fight again. Meanwhile, after many shadow clone attacks, Naruto finally has a chance to use Rasengan. The brothers accidentally destroy their lunch and make Naruto's attack hit his shadow clones. As they prepare to kill him, Shikamaru, Chōji, and Ino come to the rescue.