Ping is a chihuahua rescued from the pound by nearsighted Ethel, who thinks he's a cat. When a pair of bumbling thieves try to break into Ethel's house to steal the money they think she has stashed away, only Ping can foil their plans.
An "average" postal worker is informed by a tiny alien hologram which looks like a teenage girl that he is the "choosen one" to destroy a giant reptile to save the Earth.