With the final just days away, and Lord Sugar on the cusp of choosing his new business partner, The Apprentice: Why I Fired Them offers a chance to look back on the candidates who fell before the final hurdle, and the tasks that tested them to the limit. From slip-ups such as calling suppliers the wrong name, to pale products such as the Relationship Guru boardgame, and not forgetting Felipe's flat-pack skeleton, this year's business challenges have had it all. Helped by previously unseen insights from the eagle-eyed Karren Brady and Nick Hewer, Lord Sugar leads us through the best and worst decisions made by this year's bunch of candidates, looks back on the boardroom bust-ups, and explains how he came to his decisions on who would hear the words 'You're fired!'.