Rover Dangerfield is an animated feature film produced by Hyperion Pictures and released by Warner Bros., starring the voice talents of comedian Rodney Dangerfield, who also wrote and co-produced the film. It is about a street dog named Rover, who is owned by a Las Vegas showgirl. Rover gets dumped off Hoover Dam by the showgirl's boyfriend. However, rather than drowning, Rover ends up on a farm.
Rover lives a life of fun in Las Vegas, gambling and chasing girls with his best friend Eddie. One night, he sees his owner Connie's boyfriend, Rocky, in a transaction with a pair of gangsters, and accidentally disrupts it. Thinking that Rocky is an undercover cop setting them up, the gangsters flee, telling Rocky that he has blown his last chance. The next day, Connie goes on the road for two weeks, leaving Rocky to look after Rover. In revenge for ruining his deal, Rocky puts Rover in a bag, drives him to Hoover Dam, and throws him in the water. The bag is pulled out by two passing fishermen, and Rover runs into a farmer, Cal, and his son, Danny, who convinces his father to take him in. Cal agreed on one condition, if Rover does even one sight of trouble, he'll be sent to an animal shelter, and if nobody claims him, the animal shelter will put Rover to sleep.