With Dallas Sam being named the second graduate, six nominees remain at the Centre. After given a lesson in towing a trailer by Tim, the nominees' first challenge is to reverse tow a trailer through a U-shaped course. This task proves to be impossible for some. Their second challenge is the annual water tank challenge, which includes a straightaway acceleration and deceleration section, a forward precision steering section, and a reverse slalom section. Needless to say, more than a few people get wet.