Two competing teams of scientists search the African jungles for a secret formula.

On the run from punishment for a crime committed by his brother, Bertie Cecil (alias Lewis Victor) joins the French Foreign Legion. In Algeria, he becomes the hated rival of his commander, Chateauroy, who despises Victor's breeding and also competes for the same woman. Victor is beloved of Cigarette, an Algerian camp follower, who saves his life, though he loves another.

A beautiful white girl resident of Ta'Pu, Tana, is determined to clear Harley, who is suspected of stealing sacred jewels.

Skin Deep is a 1929 American talking drama film directed by Ray Enright and starring Monte Blue. It was produced and distributed by the Warner Brothers. It was also released in the U.S. in a silent version for theaters not equipped yet with sound. The film is a remake of a 1922 Associated First National silent film of the same name directed by Lambert Hillyer and starring Milton Sills. All copies of this film are now lost. However, the Vitaphone soundtrack, of music and effects, survive.

Barbary Coast, San Francisco. The gangster moll Belle gets deeply entangled with gangsters led by her boyfriend Vance. The professional writer John Banning understands why Belle got involved with these criminals. Banning tries to help her get out of that seedy life. However, It is not easy. A lot of action and violence ensues before Belle eventually succeeds.

Though betrothed to fellow socialite Richard, Iris weds her chauffeur Tom leaving Richard to marry the family laundress' daughter Shamrock. Class differences lead to divorces and remarriages.

"Bat" Peters, reformed gunfighter turned prospector, travels to Chicago to collect on a business deal with a mine promoter who turns out to be crooked.