Middle-aged Civil War veteran Will Jesse
meets friends Grady and Ben Young and hired guns Calhoun and Sam
Turner to await the arrival of Lane in the small town of Liberty,
Texas. When Lane arrives on the train a day late, the men are
taken aback to find him with a pretty, young woman whom he
introduces as their new employer, Mrs. Lowe. Expecting Lane’s
summons as a return to a life of excitement and danger, Grady, an
old friend of Lane's, protests, as does Calhoun who was promised
sizeable earnings in signing on with Lane. Annoyed by the
men’s misgivings, Lane refuses to explain until that night at the
saloon.
There, Lane tells the men they are to
retrieve a gold shipment stolen from a train five years earlier by a
gang of ten led by Matt Lowe, Mrs. Lowe’s husband. Lowe hid
the gold in Mexico, but was killed before he could retrieve the
fortune. Excited at the prospect of half a million dollars
worth of gold, the men are heartened until Lane explains that only
Mrs. Lowe knows the location of the gold and wishes to return it to
the Wells Fargo bank in order to clear her husband’s name for their
young son. When the men respond with disappointment, Lane
hastily states that there is a $50,000 reward for the return of the
gold. Lane adds that while two of the gang died before Lowe,
seven men remain and have been searching for Mrs. Lowe and the gold
for five years, so he and the men must provide her protection.
Later, when Lane goes to the hotel, he
fails to notice a well-dressed man sitting outside in the dark
smoking a cigar. The next morning after calming an unruly pack
mule loaded down with dynamite, the men all gape at Mrs. Lowe, who
appears in riding pants and a tight shirt with her long hair
flowing. Lane explains that it is best Mrs. Lowe’s presence be
obvious, so they will not come under attack until they reach the
gold. A few hours after the group departs, a train arrives in
Liberty carrying twenty riders in pursuit of Mrs. Lowe.
That night after setting up camp, Lane
and the men prove solicitous to Mrs. Lowe, who is amused and
surprised at their diffidence. When she asks about Lane’s
relationship with the others, Jesse explains that he and Grady
served in the Civil War under Lane and were the survivors of a
terrible battle at Vicksburg. Mrs. Lowe is surprised when
Jesse reveals that Lane befriended Ben after shooting him to prevent
him from participating in a bank robbery and admits that Sam and
Calhoun are still strangers.
The following morning, Lane berates
Calhoun for falling asleep on guard duty, allowing the pack mule
carrying the dynamite to be stolen. After riding most of the
day, the group arrives in a small town where they hear a mule
offering resistance to several men. Translating the Spanish
discussion, Lane informs the group that the thieves hoped to use the
dynamite on the mule to free jailed compatriots, but they have been
unable to handle the rambunctious animal. After reclaiming the
mule, Lane and the others proceed until nightfall, still uncertain
how large the party is following them. That evening sitting
apart from the others with Lane, Mrs. Lowe admits to having doubts
about her decision and wonders if she should simply keep the gold.
When Lane points out that she would indeed be rich, but her son
would have thieves for parents, Mrs. Lowe laughingly agrees.
The next day, upon crossing a river,
Mrs. Lowe falls off her horse and, not realizing that she cannot
swim, the men are slow in coming to her assistance. Later,
attempting to comfort the cold, wet woman, Lane offers her whisky
and the two get drunk. The next morning, after Mrs. Lowe
angrily accuses Lane of purposely getting her inebriated in order to
find out the exact location of the gold, Lane, disgusted by his own
behavior, announces his intention to turn back. Just then, the
group spots a line of men on horseback watching them from the
opposite ridge and Lane guides them hastily into a mountain pass.
Perplexed, Jesse asks Lane why he is running from a fight and giving
up when they have come so far.
Angered, Lane takes Mrs. Lowe aside and
demands to know the exact location of the gold, which she admits is
in the boiler of a train engine abandoned in the Mexican desert.
Following a sandstorm, the group again spots their pursuers on a
nearby hill, but when Lane pointedly displays Mrs. Lowe to them,
shots ring out and the group panics and flees. The men on the
hill also receive fire and take cover. Unknown to both camps,
the man with the cigar has been following them and fired on each to
prevent a conflict. Reaching the half-buried train engine,
Lane’s men work on unearthing the cargo box. Knowing that
since the gold has been located, their pursuers will not hesitate to
attack, Lane decides to use the old engine as cover and wait.
Late that afternoon, the assault begins,
but the engine offers solid protection and Lane and the others kill
ten of their attackers. That evening, Lane arranges to sneak
into the enemy camp and set off a diversion with dynamite in order
to chase the horses away. Despite Ben receiving a leg wound
and fumbling the dynamite, the plan is successful and before dawn,
Lane and the others slip away. Uncertain whether the survivors
will rally to resume the chase, Lane drives the group hard and by
nightfall of the second day they reach Liberty. Suspecting
that their pursuers may have arrived ahead of them, Lane leaves Ben
to guard Mrs. Lowe while he and the others surround the saloon.
Attacked the moment they enter the saloon, the men scatter and
during the ensuing gunfight, the attackers set fire to the hotel,
under whose porch Ben and Mrs. Lowe are hiding. While Grady,
Calhoun and Sam provide covering gunfire, Lane and Jesse hurl the
last of the dynamite at their enemies as Ben pulls Mrs. Lowe to
safety.
The next morning Lane and the others
escort Mrs. Lowe and her suitcase of gold to the train where Jesse
announces that the men have decided to let her keep the reward money
for her son. Touched, Mrs. Lowe thanks the men for their
kindness and protection, then boards the train. As the men
walk away, the man with the cigar greets them from the back deck of
the caboose and informs them that he is a Pinkerton agent working
for Wells Fargo, and has been tracking the stolen gold for five
years. As the train is pulling out, the Pinkerton man relates
that he witnessed Lowe’s murder at a brothel as did the woman they
know as Mrs. Lowe, whose real name is Lilly. Before entering
the train car, the Pinkerton man calls out that Lowe was never
married and had no children. Thunderstruck, the men gape at
the departing train until Lane gallops by, announcing that he is off
to rob a train.