WARNING: Spoilers for Book of Boba Fett episode 5.
Luke Skywalker, played by Mark Hamill, returns in The Mandalorian season 2 finale, «Chapter 16: The Rescue,» to save Grogu aka Baby Yoda and train him to be a Jedi. The Mandalorian season 2, episode 8 lived up to its title, with Din Djarin, Cara Dune, and Fennec Shand, aided by Boba Fett and joined by Bo-Katan Kryze and Koska Reeves, heading up a rescue mission to get Baby Yoda back from the clutches of Moff Gideon.
Having located Gideon's light cruiser, with some help from Dr. Pershing, the team embarks on the quest that involves facing off with Dark Troopers, a beskar vs. Darksaber duel, and a number of twists of fate that sees Grogu pass in and out of safety several times before the end of The Mandalorian's season 2 episode. Eventually, with hope lost as Mando et al are prepared to face down the Dark Troopers in a match-up they cannot possibly win, a new hope arrives.
Related: Every Jedi Who Is Still Alive During The Mandalorian
An X-wing lands on the light cruiser, a hooded figure emerges, a black-gloved hand ignites a green lightsaber. The Mandalorian's Dark Troopers are defeated, and Grogu clearly reacts to the presence of someone in the Force, before that person is eventually revealed. Luke Skywalker has arrived in The Mandalorian, saving Baby Yoda and taking him to train as a Jedi, which sets up a huge story for The Mandalorian season 3 and perhaps even further into Star Wars' future.
Luke Skywalker's return in The Mandalorian season 2, episode 8 is the show's biggest moment to date, and while it is a huge surprise at the very end of «The Rescue,» the groundwork has been laid for it. Back in The Mandalorian season 2, episode 6, «Chapter 14: The Tragedy,» Grogu
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