During season 2, Mando (real name Din Djarin) also ran into another group of Mandalorians, led by Bo-Katan Kryze. She was on a mission to retake their home world Mandalore and get the Darksaber (a Mandalorian symbol of leadership) back from Gideon. In the season finale, Mando took possession of the Darksaber and inadvertently became the leader of the Mandalorians. It seems likely that he'll join Bo-Katan's mission in season 3.