Duel on Oosalon In 3 BBY , while scouting for a potential location in which the rebellion could build a base , the Jedi Kanan Jarrus and Ezra Bridger fought a lightsaber duel with the Inquisitors known as the Seventh Sister and the Fifth Brother on the planet Oosalon . The duel ended with the escape of the Jedi . Prelude . Following the Imperial attack on Garel , the Phoenix Cell was searching for a remote world to establish a permanent rebel base , with help from the Spectres . Two of these rebels were the Jedi Purge survivor Kanan Jarrus and his apprentice Ezra Bridger . As Jedi , they were constantly being hunted by the Galactic Empire ' s Inquisitors . Two of these Inquisitors , the Fifth Brother and the Seventh Sister , pursued Kanan and Ezra for several months ; hampering the rebellion ' s efforts to search for a base . The duel . In 3 BBY , Kanan and Ezra along with the astromech droid Chopper visited the stormy planet of Oosalon . They were scouting the planet as a possible location for a rebel base . While Kanan and Ezra were exploring the Oosalon Mesa , they were attacked by the Fifth Brother and the Seventh Sister . A lightsaber duel ensued between the two groups of opponents . The two Jedi tried to contact Chopper , who was flying the auxiliary ship " Phantom " but received no response . During the duel , the Jedi managed to destroy one of the Seventh Sister ' s ID9 seeker droid s . As the duel progressed , the Fifth Brother used the Force to shove Ezra off a cliff . However , Kanan managed to levitate his apprentice to safety and grab his hand . Continuing their fight with the Inquisitors , Ezra used the Force to summon a large tibidee . The apprentice and master leapt off the clip and escaped on the back of the tibidee which flew them to safety . Once airborne , they were picked up by Chopper and the " Phantom " . The rebels then departed into space on the " Phantom " . While traveling through hyperspace , Kanan arranged with Hera Syndulla and the other crew of the " Ghost " to meet them in deep space in order to protect Phoenix Cell from the Empire ' s agents . Aftermath . After reuniting with their team aboard the " Ghost " , Kanan confided in Hera that the Inquisitors were making it hard for him and Ezra to help the rebellion to establish a base , fearing that he and Ezra would have to part company with the rebellion . Later , the two Jedi met with the former Jedi Padawan Ahsoka Tano who counselled them to seek advice from Master Yoda at the Jedi Temple on Lothal . Parting company with the other rebels , the Jedi , Ahsoka , and Chopper traveled on the " Phantom " to Lothal . While Chopper waited outside , the Jedi and Ahsoka entered the temple . There , Kanan completed his Jedi Trials and became a Jedi Knight . Meanwhile , Ezra met with Yoda who counselled the young Jedi not to fight or they would be destroyed . Since Ezra was committed to supporting the rebellion , Yoda counselled Ezra and his companions to find the planet Malachor . Meanwhile , Ahsoka experienced a Force vision of her former mentor Anakin Skywalker and learnt that he had indeed become Darth Vader . The three managed to flee with Chopper shortly before the Seventh Sister and the Fifth Brother breached the temple . After helping the rebellion to establish Chopper Base , the two Jedi , Chopper and Ahsoka departed for their journey to Malachor . Behind the scenes . The Duel on Oosalon served as the exposition of the " Star Wars Rebels " episode " Shroud of Darkness ' " , which first premiered on March 2 , 2016 .