Professor Squawkencluck is delighted her scientist Mum is coming to see her at work but delight turns to distain when it's clear Mrs Squawkencluck is more interested in hanging out with Danger Mouse. It soon becomes clear why when an enormous enraged rubbish monster attacks the base apparently targeting Squawkencluck's Mum. Squawk and DM must work together to defeat the suspiciously familiar monster only to discover that it is Mr Squawkencluck, the Professor's Dad, who was turns into a rubbish monster by her Mum during a science lab experiment gone wrong. Someone's got to clean up this town and unfortunately the mop and bucket fall into DM and Penfold's hands after they return the Professor's Dad to his normal state in a gigantic and filthy battle.