4/4 Tom and the troublesome band in his head set off for the Tower of London.
BBC Radio 4 Extra
3/4 At the zoo Tom meets Pi, who has a band in her head too. So what could go wrong?
2/4 Thanks to the band inside his head, Tom disrupts a funeral and ends up on stage.
1/4 Tom is sent to a specialist to be rid of the band inside his head.