Investigate Orochimaru's Hideout [Unofficial]

Rank: Unknown (Probable A)
Team: Inuzuka Kiba, Aburame Shino, Hyuuga Hinata > Hatake Kakashi
Haruno Sakura, Uzumaki Naruto, Sai > Yamato
Rock Lee, Ten Ten, Yamanaka Ino > Shizune
Type: Search
Status: Failed

After ANBU found one of Orochimaru's potential bases, Tsunade dispatched teams to investigate. This mission goal later changed to sealing the Sanbi, when the Bijuu was revealed nearby.