Djarin arrives at Frog Lady's homeworld in his very damaged vessel. The landing is, shall we say, rough (and makes for quite the opening scene). While awaiting repairs, he follows some leads in tracking down the Mandalorians who may be able to help him complete his mission to deliver the Child.
The leads take him to the open sea (in three episodes we've gone from desert to snow to now, briefly, a sea adventure), where the ship's captain quickly double-crosses Mando and tries to steal his armor. (One important trait about our hero is that even though he's formidable, he's not invincible, and he sometimes gets suckered into traps, as he does here.) Fortunately, the very Mandalorians Djarin was looking for show up and save his skin, taking out the crew of the ship and then sinking it for good measure. Led by Bo-Katan Kryze (Katee Sackhoff), they recruit Djarin into their plan to hijack a former Imperial freighter loaded with weapons cargo. In exchange, she agrees to give him the next clue for his mission to track down the Jedi.
"The Heiress" is a brisk outing that clocks in at just over 30 minutes, if you don't count the end credits. Since it began, one of this series' strategies has been to keep the episode run times short. These episodes never drag, and indeed they leave you with a feeling of wanting more.
There's plenty of solid action here (including some stormtrooper shoot-em-up that's in the long tradition of the franchise), but there's notably more meat to chew on as well. The former Imperial officers here (including one played by Titus Welliver) are working for Moff Gideon (Giancarlo Esposito, who appears via hologram), who possesses the Darksaber that this trio of Mandalorians are seeking.
Most notably, Djarin learns these Mandalorians are not as set in the Way as he is. They remove their helmets and are considerably less dogmatic. Bo-Katan tells him that his particular practice of the Mandalorian code originated from a sect known as the Watch, who are considered extremist zealots. This sets up an interesting turn for our hero's identity. He may be an outlier; perhaps there are other ways than simply the Way, although it remains to be seen if he will choose to pursue any other path.
Bo-Katan also gives him the name and whereabouts of the Jedi he should seek out: Ahsoka Tano.