Tommy had kept Jason out of battle throughout his training. He did not want Jason to enter a fight because he was ordered to. He wanted Jason to be able to make up his own mind when he would use his skills. But Cobra Commander was eager to put his new assassin to the test and ordered Shadow Strike to infiltrate G.I. Joe and kill the new G.I. Joe ninja Kamakura. Tommy had to make his move earlier than planned to save Jason and filled him in on his plan to leave Cobra and restart his Arashikage Clan in Japan. Jason was angered at first by Tommy's deception, but as he searched his feelings he found he did not want to do Cobra Commander's bidding. That night under the cover of darkness he followed Tommy out of Cobra HQ and they made their escape to Japan. Here Jason helped Tommy setup the clan home all the while still training under him. He has become Tommy's shadow and hopes to be the master of the clan one day.