unknown 4 now but it probably ep 164
in episode 160
Naruto Shippuden episode 203
pein ain't got a family.
after he turns into 6 tails
166
Naruto would defeat Pein. Because when he is in Sage Mode + 8 Tails, Pein could hardly fend off. Pein was forced to run when Naruto went 8 Tails, so when the manga has finished, more definite answers, it should be published. But my conclusion is Naruto defeats Pein. Naruto wont defeat him Madara Uchiha will because Madara is the only person to face the nine tailed fox by himself and live.
The episodes that Naruto tries to kill Pein is 163-168. The final battle between the two is in episode 175.
His debut appearance is Naruto Shippuden episode 114
In episode 165 Naruto uses Rasen: Shiruken
Naruto hasn't faught Pein in the Episodes yet. In the manga, it starts at Chapter 419.
Jiraiya dies from his old student Pein in Shippuden, shortly after sending a message to Konoha resulting in the defeat of Pein by Jiraiya's other student, Naruto.
he they both dont know that there brothers but they are so they dont get told but when naruto sees his dad the forth hokage he might tell naruto but i dont know if he will tell pein