If you are starting the series or looking to navigate the franchise, here is a quick guide based on MyAnimeList and Reddit community guides :

: Inuyasha and Shippō discover that a monk they encountered is actually the leader of a group of spider demons.

: This episode highlights Naraku's growing power as he begins creating "offspring" or incarnations to do his bidding, making him a more complex and dangerous threat. Manga Chapter 41: "The Spider's Web"

: A 26-episode conclusion that adapts the final chapters of the manga with much faster pacing.

: Kanna uses the stolen souls to force the villagers to attack Inuyasha and Miroku. She even attempts to suck out Kagome's soul, which proves difficult due to Kagome's immense spiritual power.

In this episode, the main antagonist Naraku introduces a new incarnation to stop Inuyasha and his companions.