Alex Thut works for the Emmerdale production unit in Leeds. His family have been unfortunate in that cancer has struck many of them and so he's running to work to raise money for a week. He wants to get the backing of Emmerdale and everyone to support him – and to inspire other people to do the same.
Alex is going to take a video camera with him and observe his journey in a daily video blog, perhaps seeing things that he's not previously noticed.
I suppose this could support the idea that we sometimes don't see or appreciate the interesting details on our journey until it is about to end.
He may also be joined by members of the cast. The hairy Dingles would be fun.