Wilf the mighty worrier is king of the jungle

Wilf has had worries before, such as fish sucking his toes when he goes for a swim, or garden gnomes coming to life, or even losing his 'How to stop worrying leaflet.' Now Wilf is worried about Alan coming on vacation to Africa with him, Alan raising an army of terrifying animals in his quest for world domination and being the only person who can stop Alan.