A mugshot for a criminal who looks just like Willie (Max Wright) is briefly flashed on a TV "crimestoppers" program. Since a huge reward has been posted for the lookalike, ALF appoints himself Willie's protector--and, accordingly, his blamed when the cops arrest Willie, even though next-door-neighbor Trevor (John LaMotta is to blame. A young David Alan Grier appears as an FBI agent. ~ Hal Erickson, Rovi