Perry Mason is hired by a distressed girl who assumed the identity of a non-existent cousin to report her own disappearance as a suspected suicide.
A widow concerned with re-establishing her dead husband's reputation with his wealthy father hires Perry Mason to defend her.
Perry helps a nearby county's district attorney, whose graft investigation led to a blackmail threat.
The train picks up the sole survivor of an ill-fated wagon train - but the man's diary indicates he may have caused its destruction!
The cattle market is depressed which forces Slim Sherman and Jess Harper to hit the trail looking for a better place to sell cattle.