Naruto Episode 16 -

: After Sasuke apparently dies protecting him from Haku’s senbon needles, Naruto’s intense grief and rage cause the Nine-Tailed Fox’s red chakra to leak out for the first time.

Depending on which series or "feature" you are looking for, episode 16 could also refer to: Naruto Episode 16

: Before being incapacitated, Sasuke fully awakens his Sharingan, allowing him to track Haku's incredible speed within the Crystal Ice Mirrors. : After Sasuke apparently dies protecting him from