Lord Sugar pits the boys against the girls as a new group of 16-to-17-year-olds compete to win a 25,000 pound fund that will be tailor-made to kick-start a career.
The 11 remaining candidates are challenged to design a new product for the lucrative parent and baby market.
An early morning delivery of a bouquet of flowers to the candidates' house holds the clue to the third task.
This episode sees a battle of the generations take place, as Lord Sugar sets the candidates the deceptively simple task of selling to the over fifties market.
Lord Sugar turns up the heat on the remaining candidates, tasking them with developing a new brand of deodorant, which they must launch with an eye-catching TV advert.
Called to Madame Tussauds, the remaining candidates are given just ten hours to find ten items for ten waxworks, leading to a frantic chase across London.
With the final looming, Lord Sugar visits the house to deliver some dramatic news. He then sends them off to Leeds, where they must develop a new brand of popcorn.
Lord Sugar challenges the two remaining candidates to create and promote a new downloadable online game. One will receive the prize, and for the other it is 'game over'.
