Absolutely Anything tells the tale of a disillusioned schoolteacher, Neil Clarke, who is suddenly granted the ability to do anything he wishes.

These powers are bestowed upon him by a group of aliens, who are watching him from outer space. Unbeknown to Neil, how he employs his newfound powers will dictate the fate of mankind. One wrong move and the aliens will destroy Earth forever.

While struggling with these miraculous powers, Neil is also bidding to win the heart of the girl who lives in the flat downstairs, Catherine, and he calls upon his loyal canine companion Dennis to help him along the way. Catherine's former boyfriend, meanwhile, appears on the scene to prove an exacting nemesis.

Will Neil do the right thing and use his powers properly? Will he get the girl of his dreams? And will Dennis help him achieve his dreams, or just dream about dog biscuits? The fate of the planet depends on Neil's actions...