Episode 420 the 8 inner gates formation is out
short summary: Gai goes to town on Madara but is slowed by the pain of the gates still he finally lands a blow on madara thanks to Minato and kakashi and gaara and lee all helping him.
Naruto wakes up to find the sage of 6 paths talking to him in an archaic language he doesn't understand until the old man dumbs down his speech to Narutos level,