Din Djarin and his tribe come to the aid of Greef Karga on Nevarro.

Source: https://primaryignition.com/2023/04/04/the-mandalorian-chapter-21-the-pirate-review/

Djarin has to help assault an imperial base on Nevarro before he can find Ahsoka Tano.

Source: https://www.cbr.com/the-mandalorian-annoyed-fans-star-wars/

He and Bo-Katan () convince them to aid the pirate-besieged world of Nevarro, and as thanks they’re granted land of their own by Magistrate Greef Karga ().

Source: https://collider.com/the-mandalorian-season-3-grogu-doesnt-belong/

IG-11 was seen in season 3 premiere memorialized as a statue on Nevarro with some of his original parts, and Mando wants him operational again.

Source: https://screenrant.com/the-mandalorian-season-3-ig-11-story-plot-hole/

The suspicions of a larger plot involving Nevarro were confirmed, and the pirates from the first episode had a larger role.

Source: https://screenrant.com/star-wars-live-action-episodes-ranked/

With Nevarro under siege by pirates, Captain Carson Teva finds Din at the Mandalorian covert to pass on Greef Karga's message for help.

Source: https://screenrant.com/the-mandalorian-season-3-without-book-of-boba-fett/