The Son of Rusty is a 1947 American drama film directed by Lew Landers and starring Ted Donaldson, Stephen Dunne and Ann Doran.

[1] Danny Mitchell and friends, Squeaky Foley, Gerald Hebble, Nip and Tuck Worden hang out in their clubhouse, listening to the radio serial "Fang, the Detective Dog" while they collect enough Vitabark box tops to send off for a book How to Train Your Dog to Be a Detective so they can train Danny's German Shepherd, Rusty.

The clubhouse is on private property belonging to retired lawyer Franklyn B. Gibson, who instead of running the boys off, uses it as an opportunity to teach a lesson in responsibility.

Barlow is sharecropping the old, dilapidated, empty Gruber farm and is arrested when the townspeople accuse him of deliberately injuring Rusty while dynamiting a tree stump.

Jed Barlow's main accuser Gerald Hebble's older brother Luther is charged with slander and the two German Shepherds, Rusty & Barb, become real good friends, hence the movie's title.