Tonight, Gordon's mantra is ‘expect the unexpected' as he pushes the contenders to the extreme. First, Gordon sends his contenders to the glorious Lake District – it's an epic location that will see them having to dig deep to succeed. Not only will the teams have to hit Gordon's surprise brief, they'll need to overcome their fears as they face a terrifying challenge 1,000 feet in the air.Next, Gordon ramps up his demands to discover who's a jack of all trades. They'll need to master product development, marketing, design, social media and pitching their ideas to a panel of world-class experts. It's a relentless ask, and the demands keep coming. Who will prove to be an all-rounder, and who will drop the ball?Finally, it's the biggest test of all, as they come face-to face with Gordon. There's nowhere to hide as he grills the contenders on their performance this week. Who will survive a one-on-one with the man himself and who will he send home?