A new group of candidates set off on their first task - selling collectables at Wimbledon Car Boot Sale.

The candidates are summoned to the Istituto Marangoni where Lord Sugar tells them that their next task they must create an advertising campaign for jeans made from Japanese denim.

Lord Sugar decides it's time to mix up the boys and girls. It is a sticky task ahead, as the candidates must design and manufacture their own brand of sweets and head to the sunny coastal town of Brighton to sell them.

The candidates are summoned to Drapers' Hall, where they learn that for their next task they will be taking over part of the world-famous department store Liberty of London. The teams have to introduce a new product line to promote and sell in the store, and they must also run a personal-shopping service for some of London's most discerning shoppers. It is boom or bust as the teams have two days to fight it out and see who can turn premium stock into a pretty penny.

Lord Sugar wants the candidates to help secure investment for someone else. They must help two entrepreneurs launch their new cycling product and get the public to invest through crowdfunding.

Lord Sugar sends the candidates out to work the night shift. They have to stay awake, find nine items, negotiate the best possible price and be back at the Shard by 6am. The team that spends the least amount of money will win the task.

Lord Sugar instructs the candidates to tap into one of the UK's biggest markets - the boating and leisure industry. The task is simple, pick the right products and sell them at Poole Harbour Boat Show.

The candidates are summoned to the National Portrait Gallery, where Lord Sugar instructs them to organise an exclusive late-night event at two of London's biggest tourist attractions - the London Aquarium and Madame Tussauds. In under 36 hours, each team must organise and host an event to remember, keeping an eye on profits but also pleasing the punters. From setting up refreshments and entertainment to making sure they sell enough tickets to fill their venue, both teams have a challenge on their hands.

After a leisurely morning in the house, the candidates are shocked when Karren and Claude appear at the front door to give a briefing that is 'out of this world'. For the next task, the teams have to push their imagination and design skills to the limit to create a new virtual reality game, before pitching it to a huge audience of gaming enthusiasts at the world-famous Comic Con exhibition.

As the teams move into week 10, the remaining candidates are summoned to the Old Royal Naval College in Greenwich. Here Lord Sugar sets them the task of creating and producing the spirit of the moment - gin. With the final in sight, the candidates are all desperate to impress. However, one team gets a little carried away with the taste testing, getting tipsy before the day has even begun, while on the other team, their pitches hit rock bottom when a key retailer reveals they don't like the colour, taste or branding of the gin. One candidate is left with a bitter taste in their mouth when the rest of the team turns against them, and tempers reach boiling point. Who will be fired?.

Ten weeks ago, 18 candidates arrived in the boardroom in the hope of becoming Alan Sugar's next business partner. As series 12 draws to a close, this episode profiles the remaining job applicants. It features interviews with parents, partners and friends, along with Lord Sugar's aides, Karren Brady and Claude Littner.

The battle to become Lord Sugar's business partner is nearing the end, as the remaining candidates have 24 hours to brush up on their business plans and face the formidable interview process. It's time to get a grilling from four of Lord Sugar's trusted advisors - Claude Littner, Claudine Collins, Mike Soutar and Linda Plant. After plans are scrutinised and characters questioned, Lord Sugar selects his two finalists.

Ahead of the final, Lord Sugar looks back on the tasks from this year's series and assesses the candidates' performances. Helped by previously unseen insights from Karren Brady and Claude Littner, the business tycoon goes through the best and worst decisions made by the contestants and looks back on the boardroom bust-ups, before revealing how he decided which candidates he would fire.

The two finalists receive a call summoning them to London's City Hall. Lord Sugar informs them that their final task is to launch their business by creating a brand and unveiling their campaign in front of a packed audience full of industry experts. A few old faces return as the two finalists choose key colleagues to try to help them secure the £250,000 investment, and it is straight to work as they set out to build a brand, make a TV advert and create a company fit for Lord Sugar. In the boardroom, business plans are evaluated and ad campaigns are assessed, but there can only one winner. It is heartbreak for one and ecstasy for the other, as Lord Sugar finally picks his next business partner.