With five teams remaining, round two promises to be a game-changer.The challenges have just gotten tougher, so only those with real skill and experience can survive these tests of ultimate endurance. The monster Masseys may have met their match against the vintage John Deere. Sometimes size isn't everything!It's all to play for, and the teams who keep their cool and weigh up the odds are the only ones likely to stay out of the tractor-off at this level. With challenges on a vast scale, our drivers will need to be quick and nimble to avoid the huge wrecking ball in Xtreme Obstacles, but it could be slow and steady wins the race on the very tricky Load of Balls course - that's the clincher.No one wants to face the tug of war tractor-off - when those wheels stop spinning, only one team can return to the safety of the barn, and it's all over for the losers.