Seemingly at random, a hobo dude attaches himself to an upper-middle-class family and starts influencing them for the better in their day-to-day activities
Scooby-Doo! and the Sea Monsters
Scooby-Doo: Agence toutou risques, vol. 2 : Le fantÎme de la télé
Police Academy: Mission to Moscow
Moscow, I Love You!