Grand Designs | Preview (Channel 4)

The iconic property show returns, as Kevin McCloud follows more of Britain's most ambitious self-building projects, as intrepid individuals attempt to design and construct the home of their dreams.

In this episode, Kevin meets adventurous couple Colin and Adele, who aren't afraid to explore the more hair-raising corners of the planet. Through his film production company, Colin has even filmed in North Korea with dictator Kim Jong-un.

However, his next production will involve his biggest challenge yet - building an eye-popping curved glass family home in the south Manchester suburb where the couple grew up.

Colin and Adele have followed their globetrotting instincts by engaging a Swedish architect, an Italian interior design company and a Latvian building company.

Right from the start, their £700k construction budget comes under stress when Colin refuses to compromise and goes with an expensive engineering change to make the house look like it's floating.

However, it gets a lot worse a few months in, when there's an issue with the contractors who Colin paid upfront to build the entire structure. Delays inevitably stretch out, progress is negligible, and Colin and Adele are tens of thousands of pounds out of pocket.

As the Covid pandemic strikes, with barely a few walls installed and winter rain pouring in, the build is on life support. Colin and Adele, facing financial ruin, have to summon every ounce of adventurous spirit if they're to turn disaster into triumph...

Grand Designs returns Wednesday 31st August at 9pm on Channel 4.