When the Mandalorian visits Tattooine in search of more Mandalorians he discovers a Boba Fett imposter, but soon the real Boba will make himself know.
The Mandalorian (Pedro Pascal) and the Child go to see a one-eyed alien called Gor Koresh (John Leguizamo) at a ring fight. The Mandalorian needs information on other Mandalorians in hiding to help him reunite the Child with his kind, and he had heard that Gor Koresh could provide that. After the Mandalorian refuses to bet his beskar armor for the ongoing brawl inside the ring, Koresh shoots the opponent he was betting against and then points his gun at the Mandalorian, along with three of his henchmen. The Mandalorian easily defeats Gor Koresh's paid henchmen. Koresh tries to flee in the ensuing chaos but the Mandalorian catches up with him outside and hangs him upside down on a street light. Koresh divulges that he had heard of another Mandalorian on Tatooine. The Mandalorian then leaves Koresh to die at the claws of unknown nocturnal creatures.
On returning to Tatooine the Mandalorian meets up with the mechanic Peli Motto (Amy Sedaris). Motto is pleased to learn that the Child is alive and well, and surprised to see that the Mandalorian is now okay with her droids touching his ship. The Mandalorian asks Motto's help in finding out the Tatooine city Koresh was speaking about, Mos Pelgo, which is not seen on any modern maps. Motto says that's because it was wiped out during the war, and it's a simple mining settlement now. The Mandalorian requests a speeder bike from Motto which she gives.
The Mandalorian arrives in Mos Pelgo and steps into an empty cantina and asks the barkeep where he can find "a man who looks like me". The barkeep points to the Marshal of the town sporting pieces of Mandalorian armor at the door, who strides towards the Mandalorian and order two drinks. He sits at a nearby table and promptly takes off his helmet (Timothy Olyphant) an act that is forbidden in the Mandalorian creed.
For the Mandalorian, a non-Mandalorian wearing Mandalorian armor is sacrilege, and he immediately demands that the Marshal take it off and hand it over. Their stand-off is interrupted by an earthquake, which is revealed to be a giant krayt dragon that has been terrorizing the town of Mos Pelgo. The Marshal makes the Mandalorian an offer: help him slay the dragon and in exchange the Marshal will part with the armor. The Mandalorian accepts and the two set off on their speeders towards the dragon's lair. Along the way, the Marshal reveals his backstory: he's Cobb Vanth, a lifelong resident of Tatooine who survived an attack from the Mining Collective on Mos Pelgo after the destruction of the second Death Star. He escaped unknowingly with a box of crystals, which he traded to his Jawa rescuers in exchange for his freedom and remnants of the Mandalorian armor they had salvaged from a Sarlacc.
Along the way to the dragon's cave, they encounter the Sand People and their beasts. The Mandalorian speaks Tusken and helps them form an alliance to take down the krayt dragon together. The Mandalorian volunteers Cobb Vanth's townsfolk to help, despite the Sand People and the Mos Pelgo citizens being enemies. The Mandalorian and Cobb Vanth make a joint appeal, reminding them that the krayt dragon can swallow the whole of Mos Pelgo one day if it likes. They put a plan in motion: wake up the dragon, grab onto it with giant spikes to hold him in place, and then blow a series of charges that have been buried in the sand since the dragon's underbelly is the only vulnerable body part.
The krayt dragon senses it's being lured out and tries to slip back into his cave. The joint forces pelt him with blasters and explosives to enrage it. The krayt dragon spouts acid bile which vaporizes anything it touches. The first series of explosives barely make a dent in the beast's thick skin. The krayt dragon begins burrowing underground and emerging from unexpected places. The Mandalorian makes a plan on the spot with the remaining explosives that are tied to a bantha as Vanth gets the dragon's attention. As it approaches them, the Mandalorian pushes Vanth out of the way and is swallowed whole by the dragon along with the explosive laden bantha who then goes underground. The krayt dragon again emerges from underground, and the Mandalorian emerges alongside, having electrically shocked the inside of the beast's mouth with his weapons to open it. The Mandalorian detonates the explosives deep in the dragon's belly, ripping it apart.
The Sand People began butchering the beast, discovering a Krayt Dragon Pearl within. With the krayt dragon dealt with and the armor back where it belongs, the Mandalorian bids Vanth goodbye and heads back to his spaceship. Meanwhile, a scarred Jango Fett clone (possibly the original owner of the armor) watches the Mandalorian from afar, with two weapons slung across his back.