For the final head to head, in the fight to win a ú250,000 investment, the remaining candidates go to London's Sky Garden in the City. Hoping to help the two front runners flourish are past candidates from this year, who are hand-picked to make up the teams. The grand finale is a three-day challenge, where the finalists have to bring their business plans to life in order to prove their concept has the potential to grow big. The finalists must create brands and ad campaigns before pitching to a room full of experts in City Hall.