The Mandalorian S3 - Promo Trailer HD - The Mandalorian Season 3 "Who We Are" Promo (HD) Star Wars series - The Mandalorian Season 3 premieres March 1st on Disney+. Once a lone bounty hunter, Din Djarin has reunited with Grogu. Meanwhile, the New Republic struggles to lead the galaxy away from its dark history. The Mandalorian will cross paths with old allies and make new enemies as he and Grogu continue their journey together.