It's week eight and the candidates are taken back in time to the Museum of Childhood. Lord Sugar instructs the teams to become party planners, with just two days to set up and host a children's party for some high-spending clients.With a £2,000 budget, the candidates must throw an event to remember, keeping an eye on profits but also pleasing the punters. Contending with tricky teens and hard-to-please parents, both teams have a challenge on their hands.For one project manager it's a dream gig. But with grand plans for the teens to have a blast, it's not long before a massive oversight threatens to derail their task completely. Elsewhere on the team there's a party pooper, as one candidate's attempts to keep a tight rein on the budget risk spoiling the day for the birthday girl.On the other team, efforts to make merry with the kids fall flat when an overzealous double act lead a lacklustre assault course. Things go from bad to worse with a mix up over the birthday cake and a blunder with the party gifts. Faced with disgruntled customers, the blame game starts and the party falls flat.As the figures are added up and the profits announced, in the boardroom it's a celebration for some. For the losers, an indignant Lord Sugar takes an unprecedented step, and for someone the party is most definitely over.