A gang of thieves kill a silver mine's paymaster and wound a policeman during a payroll robbery. Blake pursues a gang of murderous thieves to a graveyard in Virginia City, Nevada.

Blake investigates a businessman's claim that someone plans to kill him.

Blake races to arrest a criminal who fled to Los Angeles after committing a murder in Reno before the husband can find him and exact his personal revenge.

Rod tries to capture a murderous robber through his ex-wife, a Las Vegas chorus girl.

When a gangster is arrested for attacking his ex-wife with a wrench, he pleads insanity. Blake works to prove that the thug is competent to stand trail and intended to maim his former spouse.

The captain of a sightseeing boat reports a passenger, who had been acting oddly after spotting a couple on the dock, has disappeared during a tour of Lake Mead.

Blake pursues a gang who have been robbing mines and mills.

Blake is called as a witness in a million-dollar lawsuit against the U.S. government.

In order to capture a con-woman, Blake must run a con of his own.

Blake investigates a jewelry theft and uncovers a cloud of suspects.

Blake investigates when a Hoover Dam worker irrationally flees a plainclothes detective and falls to his death.

A man kidnaps two women from a national park and threatens them unless his former boss ransoms them. Blake goes undercover as a photographer to try to rescue the missing women before they come to harm.

When a private plane crashes in the Nevada desert, Blake is asked to help identify the victims.

A husband and wife disappear under mysterious circumstances. Their daughter, a pretty college student, claims that they often travel great distances on the spur of the moment.

Blake tries to stop a sniper who is terrorizing the populace.

A family of crooks plans to hijack appliances bound for a new housing development.

A publicist calls the Las Vegas police to claim an entertainer he represents has been kidnapped. Blake and Elder's investigation reveals a link between the abduction and a bank robbery.

When a runaway truck accidentally strikes an old mansion, a human skeleton--long hidden inside a wall--are revealed.

While investigating a murder, Blake discovers his suspect has fled Nevada, heading for New York City.