Early in the second half, Cliff Harris intercepted a pass from Lee and returned it 30 yards to the Vikings 13-yard line, setting up Duane Thomas' 13-yard touchdown run to give Dallas a 13–3 lead. Minnesota had a big chance to get back in the game when Charlie West returned the ensuing kickoff 51 yards, but this merely resulted in another missed field goal try by Cox, this one a 46-yard attempt. Late the third quarter, Dallas safety Charlie Waters returned a punt 24 yards to the Cowboys 48, sparking their only sustained drive of the second half. Moving the ball 52 yards, including a 30-yard completion from Staubach to Lance Alworth on 3rd and 15, Dallas went up 20-3 on Staubach's 9-yard touchdown pass to Hayes.