The Diabolical Cloud - S1.E9

As Fiona and Baby return from a stroll around the docks, their hair starts growing at top speed all of a sudden ... and turns bright pink Ma and the Gumboyle girls blame Achilles, the laboratory rat Kev has brought home. But Dr Dog soon realises they've got it all wrong and discovers the true culprit : Dr Foyle's super powerful fertiliser and its highly toxic fumes.