As the war continues to erupt, the field leader of Mishima Zaibatsu's Tekken Force, Lars Alexandersson, has rebelled from the army along with several of his soldiers. However, Lars loses his memory during an attack by the G Corporation and spends some time recovering it. Accompanied by an android, Alisa Bosconovitch, Lars ventures throughout the world, avoiding the Mishima Zaibatsu's manhunt for him while also trying to recover his past. It is eventually revealed that Lars is actually the illegitimate son of Heihachi Mishima, who has gone into hiding since his supposed demise in the last tournament, and has been trying to take the Mishima Zaibatsu from Jin's hands. After coming into contact with several allies, including his adoptive brother, Lee Chaolan, Lars confronts the G Corporation and Mishima Zaibatsu's headquarters. Jin reveals he had sent Alisa to spy on Lars' actions all along. Disabling Alisa's safe mode, Lars is forced to confront his former teammate, who leaves with Jin to Egypt.