After the fall of the Galactic Empire, lawlessness has spread throughout the galaxy. A lone gunfighter makes his way through the outer reaches, earning his keep as a bounty hunter.Source: TMDb
Currently, you can only stream The Mandalorian on Disney+ in the United States.
Unfortunately, you cannot buy or rent The Mandalorian on any of the streaming services in the United States at the moment.
The first season of The Mandalorian was released in 2019.
Currently there are 2 Seasons of The Mandalorian. The 2nd and to date the last season of The Mandalorian was released in 2020.