Henry Wilssin (Tim Allen) was a scientist, a scholar and a champion fencer... and the dullest single-dad in town! Constantly embarrassing his son, Toby (Teddy Davis) at school functions and playdates, it became too much for Toby to handle. Until ONE day, Henry decided he'd turn it all around with his new social-boosted formula! Wilssin is instantly transformed into a hot-shot dad who packs the house with the hippest gadgets and video games... but he's stealing all his son's friends. When faced with the development that Henry is in fact getting dumber by the minute, its a race against the clock to make an antidote before he loses his smarts for good! This Memorial Day it's Cool Dad starring Tim Allen!