The Machine Gun Company of the 39th Battalion had deployed along the track (less its medium machine guns) and had been holding a position at Isurava for about a week. Cameron called it forward, arriving in Deniki at 5:00 pm on 12 August, it exchanged roles with B Company. Patrols from Deniki had reported the Japanese advancing "en masse" from Kokoda. Their attack commenced 5:30 am on 13 August and continued throughout the day. Sporadic gunfire continued through most of the night and the attack was renewed the next morning. As the Japanese threatened his flanks and rear, Cameron ordered the withdrawal to Isurava at 9:50 am.