Rod Cameron stars as Captain Calhoun, a cavalry officer dedicated to protecting the rights of Indians from greedy gold prospectors. Calhoun's superior officer Lt. Col. Ungar (Forrest Tucker) despises all Indians, and makes things difficult for those who try to enforce existing treaties. Other interested parties include saloon owner Ira Jordan (Jim Davis), who is counting upon plenty of revenue from the prospectors, and saloon thrush Lia Wilson (Adrian Booth), who carries torches for Calhoun, Ungar and Jordan. An anticipated climax comes with a vengeance as the betrayed Indians attack Ungar's fort.
Oh! Susanna is a fairly ambitious western with lavish production values and good acting, especially by Forest Tucker who as a head of a Fort has a giant-sized chip on his shoulder and is egging for a fight with the Sioux. Jim Davis joins him as a negative character, also egging for a war - they both clash with Rod Cameron's captain character, a West Point man, who is trying to quell a war with Sioux, over a treaty and a woman ( Lorna Grey). It's a fairly good western with enough conflict, dialogue and action - the latter comes in the last twenty minutes with a rousing injun attack.
Overall, Oh! Susanna is entertaining, though the title is wrong as there's no link to Susanna, except that the song appears briefly in "The End". Not sure why it was called that - maybe the filmmakers wanted something unexpected and original.
