Twenty-year-old currency trader Dan thinks the homeless can do more to get off the streets and he wants to prove this, but his opinions are changed when he meets Mark.

Gadget-loving 21-year-old Josh lives on a country estate with mum and dad, and is convinced that when he lives rough on the streets for three nights, he will easily make money.

Twenty-four-year-old Jay, who works in finance and loves splashing his cash on clothes and cars, agrees to live on the streets of London for three nights.