Quote Originally Posted by Rikudo
So Pein and Tsunade knows each other, not good for Tsunade if that's the case. Pein probably knows Tsunade's strength and weakness.

And how come Gai's team hasn't been alerted of the attack, it seems like a lot of time has passed from the start of the attack even if it was a surprised. How lame.
Not a lot of time has passed, and probably because Gai is in another mission somewhere else?