The Tanner family is an average American family. One day they learn a visitor. Small, hairy man, arrogant, an alien from the planet Melmac. Not sure what to do, it’s ALF: the name of the alien life form. As far as the home planet is concerned, there is much to say for the Earth, the Alf will soon decide: Tanners are ready to accept everything unless I declare his presence. Yes, Tanners is a cat that looks pretty tasty.