When scientists exploring the Amazon River stumble on a “missing link” connecting humans and fish, they plan to capture it for later study. But the Creature has plans of his own, and has set his sights on the lead scientist's beautiful fiancée, Kay.

Hud Bannon is a ruthless young man who tarnishes everything and everyone he touches. Hud represents the perfect embodiment of alienated youth, out for kicks with no regard for the consequences. There is bitter conflict between the callous Hud and his stern and highly principled father, Homer. Hud's nephew Lon admires Hud's cheating ways, though he soon becomes too aware of Hud's reckless amorality to bear him anymore. In the world of the takers and the taken, Hud is a winner. He's a cheat, but, he explains, "I always say the law was meant to be interpreted in a lenient manner."

Major Daniel Kirby takes command of a squadron of Marine fliers just before they are about to go into combat. While the men are well meaning, he finds them undisciplined and prone to always finding excuses to do what is easy rather than what is necessary. The root of the problem is the second in command, Capt. Carl 'Griff' Griffin. Griff is the best flier in the group but Kirby finds him a poor commander who is not prepared to make the difficult decision that all commanders have to make - to put men in harm's way knowing that they may be killed.

Battle of the Bulge, World War II, 1944. Lieutenant Costa, an infantry company officer who must establish artillery observation posts in a strategic area, has serious doubts about Captain Cooney's leadership ability.

One of the last bills signed by President Lincoln authorizes pushing the Union Pacific Railroad across the wilderness to California. But financial opportunist Asa Barrows hopes to profit from obstructing it. Chief troubleshooter Jeff Butler has his hands full fighting Barrows' agent, gambler Sid Campeau; Campeau's partner Dick Allen is Jeff's war buddy and rival suitor for engineer's daughter Molly Monahan. Who will survive the effort to push the railroad through at any cost?

Young Matt Matthews, an Ozark Mountains moonshiner, hates the father he has never seen, who apparently deserted Matt's mother and left her to die. His obsession contributes to the hatred rampant in the mountains. However, the arrival of a stranger, Daniel Howitt, begins to positively affect the mountain people, who learn to shed their hatred under his gentle influence.

John Wyatt is a government agent sent to smash a counterfeiting operation near the Mexican border. Joining Doc Carter's medicine show they arrive in the town where Curly Joe, who once framed Carter, resides.

12 American military prisoners in World War II are ordered to infiltrate a well-guarded enemy château and kill the Nazi officers vacationing there. The soldiers, most of whom are facing death sentences for a variety of violent crimes, agree to the mission and the possible commuting of their sentences.

All unemployed, Ki-taek's family takes peculiar interest in the wealthy and glamorous Parks for their livelihood until they get entangled in an unexpected incident.