They had gone to Geonosis on a mission to rescue Obi-Wan, As they arrived in attempt to rescue his master, one led to another and he lost his lightsaber during the fight between him and the droids. It wasn’t till later the both of them were caught and send to the arena where Obi-wan had been tied up against a pillar, Anakin looked at him with shame in his eyes before looking back at her with concern. Now it looked like they were the ones in need of rescuing, “we came here to rescue you.”