Desc: Terror Trail: Directed by Edward A. Kull. With Eileen Sedgwick, George Larkin, Theodore Brown, Albert J. Smith. The government is about to buy a secret formula for a powerful gas. The formula is divided into three parts and three agents start for a central point with each separate part, where it is to be tested. A band of conspirators attempt to secure the various parts of the formula by fair means or foul.