On Lothal, Sumar was the owner of a small farmstead, and was a long-time family friend of Mira and Ephraim Bridger. Following the Galactic Empire's overtaking of Lothal, Sumar was threatened with losing his land for Imperial expansion.
Reuniting with Ezra
- “Ezra? Is that Ezra Bridger?”
- ―Sumar, upon seeing Ezra again[src]
One day, while selling his produce in Kothal, Sumar struck up a conversation with a rebel named Ezra Bridger, having not seen him in years. After exchanging greetings, Ezra asked Sumar where he could find some Meilooruns. Sumar informed Ezra that the fruit didn't grow on Lothal, and that he would need an off world importer. The two then parted ways.
Moments later, Ezra watched as Imperial Supply Master Yogar Lyste approached Sumar, and questioned him about his land. Sumar was quick to dismiss Lyste, despite the officer's previous attempts at bartering.
Imprisoned by the Empire
- "I told you before, were not selling this farm."
- "You misunderstand. We're no longer interested in... buying."
- —Sumar, discussing his farm with Lyste
After returning to his farm from Kothal, Sumar was once again visited by Lyste, this time armed with Imperial Troop Transports and Stormtroopers. Lyste then ordered the destruction of Sumar's home, and, within seconds, it was gone. After narrowly evading the explosion, Sumar, his wife, and his farmhands were sealed onto the sides of the transport, heading to Capital City.
Soon after, Sumar was visited by Ezra, who had snuck onto the transport via a stolen TIE Fighter. Ezra eventually managed to unlock Sumar's restraints, saving him from Imperial forces. After jumping ship with his friends and family, Sumar managed to escape.
Sumar and his wife were later part of a small group of Lothal Rebels who formed under former Governor Ryder Azadi to resist the Imperial occupation of Lothal. Sumar made the notable contribution of infiltrating the labor force of the Lothal Imperial Factory and working with others to sabotage equipment. After being reunited with Ezra and learning of Phoenix Squadron's plans to attack the factory with other rebels, Sumar snuck the young Jedi and his master, Kanan Jarrus, into the factory to see what else they could learn. Unfortunately, Sumar's sabotage efforts had been discovered by Grand Admiral Thrawn, who had Sumar mount a speeder that he had personally sabotaged. Sumar was killed when Thrawn overrode the controls and forced it to go to top speed, leading it to explode due to Sumar's sabotage. It fell to Ezra to report Sumar's fate to his wife upon their escape.
- "An Inside Man" (Last appearance)
- Sumar was originally supposed to appear in "Fire Across the Galaxy" where he would have been surprised to see Ezra as a wanted rebel. However, his scene was never made and the idea was scrapped.