Nina doubts herself
Nina decides that 'this pizza' just means she has to deliver a single slice of the pizza, and uses big steps to reach the tricycle.
She then quickly identifies - by repeatedly asking him to repeat "Buongiorno!" - that the man on the other side of the lake is not Tom Cashman, and decides that Tom himself must be in the house.
She puts her one slice of pizza into the back of the radio-controlled ute, and drives it across the grass, while taking big steps alongside it.
She manages to get the ute up onto the path through the woods, and jumps along behind it, before picking it up and continuing to hop like a kangaroo through the woods while carrying it.
She stops on the way to the house to check that Tom is not in the caravan, and begins to doubt her initial judgment that the man at the lake was not Tom.
She nevertheless drives the ute across the lawn to the house, and then gets on a bicycle, which she uses to explore the ground floor of the property.
She completely dismisses the idea that he might be upstairs, assuming, for some reason, that they would not make the contestants ascend the stairs during the task. She instead decides to return to the lake and deliver the pizza to Tom's doppelganger.
She cycles back while holding the ute, dropping the single slice of pizza she has been carrying on the lawn, near the house.
Back at the dock, she gets into the dinghy with the rest of the pizza, and rows across the lake.
She flings a slice of the pizza at the fake Tom like a frisbee, and considers herself to have completed the task when it hits his chest and lands in his lap.
She then returns to the dock, disembarks from the dinghy, and walks back to the house, very pleased with herself.
She only realises her mistake when she enters the study, and finds Tom sat there with his arms crossed.
Walking back out of the house, she fortunately discovers the lost slice of pizza she had previously dropped, and picks it up, returning to the study in jumps, rather than steps.
She again decides that throwing pizza is the best way to deliver it, and flings it towards the desk, which it slides across and then falls off of.
In the studio, Tom Cashman confirms that, if Nina had gone upstairs when she was first in the house, she would have won the task, as she had only taken 37 steps, up to that point. However, with her big detour, Nina managed to rack up a total of 505 steps, which means she places third in the task.
(Written by Karl Craven)
(Illustrations collected and adjusted by: David Fuller)