Star Wars Rebels Season 4 Episode 1 - Heroes of Mandalore Part 1 Episode Title:Heroes of Mandalore Part 1.Episode Description:Sabine, Kanan and Ezra lead Clan Wren in a raid on a Clan Saxon outpost to rescue Sabine’s father who is being held captive by Clan Saxon on behalf of the Empire. The outpost turns out to be a trap to capture Sabine but they are rescued by Lady Bo-Katan of Clan Kryze. As Bo-Katan should have become ruler of Mandalore after her sister, Duchess Satine, was murdered, Sabine attempts to give her the Darksaber but Bo-Katan refuses to accept it. Sabine’s father is to be moved to the capital city for a public execution so Sabine plans to rescue him as he is being transported there. They attack the convoy and succeed in rescuing Sabine’s father, Alrich Wren, who turns out to be as much of an artist as Sabine. Sabine is contacted by her mother just as the Empire reveals a new weapon, the sound of which Sabine recognises. They rush to the site of the attack and find every Mandalorian warrior vaporized. Sabine is devastated as she realises they were killed by a weapon she personally designed for the Empire, but is relieved to find her mother and brother have survived the attack. As more Imperials arrive, Sabine and her allies are rescued by Clan Kryze, while Bo-Katan and Ezra destroy the pursuing TIE fighters. Saxon shows a recording of the weapon's field test to Thrawn—the weapon superheats an alloy in Mandalorian armor, killing the occupant, but leaving stormtroopers unharmed. At Bo-Katan's camp, her men confront Sabine for her role in the creation of the weapon which she named the Duchess, after Bo-Katan's sister, Satine. Sabine convinces Clan Kryze to join her in a raid on Saxon's Star Destroyer to destroy the weapon. During the assault, Sabine is incapacitated by Saxon, who orders her to adjust to weapon to its full power. She does so, but she instead recalibrates the weapon to target Imperial armor, which stuns the Imperial troops. Sabine slashes the weapon with the Darksaber, breaching its power core and destroying the Star Destroyer. At the Kryze camp, Sabine gives Bo-Katan the Darksaber, making her the true leader of Mandalore.