When three friends spot a litter lout adding to the problems on London's street, they decide enough is enough. With the help of the Green Gang, they become Litter Detectives, and form their own pop group, performing their own song called, "Pick It Up" to help clean up London.

The result? A great story, a catchy sing-along song, and with the help of all the kids in London, the largest detective force in history.

But will they clean up our capital?

With a song by Hilary Hayton & Derek Wadsworth