Lady lawyer Portia Merryman (Frieda Inescourt) defends woebegone Elizabeth Manners (Heather Angel), who is on trial for shooting her lover Earle Condon (Neil Hamilton).
The trials faced by the US Army when it first attempted to trade horses for tanks provides the basis of this actioner. The tale centers upon the love affair between an Army post commander's daughter and a young tank specialist who is trying to prove that the new technology is better than horses. The old soldiers disagree and a race upon a special course is arranged
