He's going to take Grogu to Tython. He's going to sit him on the rock and let him choose his destiny.
We see them waiting, and then we see an Imperial Fleet Jump into the system, and a assault craft with Tie Fighters land.
We see Moff Gideon accompanied by the cyber troopers. Moff tries to reason with Mando to hand over the child. Of course that kind offer is refused. We also see Fennec Shand.
A battle ensues and the Mando is quickly overwhelmed and knocked unconscious. When he wakes up, the fleet is gone as is the Child and his armor.
His ship is gone as well (Fennec takes it).
The next episode is him just trying to survive on a hostile planet, (in EU Tython had the Flesh Eaters. They were thought to be former Jedi driven mad who had de-evolved). He finds a way to call for help to his friends. Eventually the help comes, and the last episode is him trying to build a team to find out where the Empire has taken the Child and rescue it.
We get scenes of blood being drawn.
The last scene of the year shows the team gathered and planning,
Mando is wearing old crappy armor, maybe no helmet. Then we go to the imperial Lab and see one of the clone thingies in the vial open its eyes and they're yellow. (Palpatines new body)
armour gone... but not his ship.... he then puts on boba's gear!!! 