The crew of an atomic submarine battle to save the world from global destruction.

World War II drama where the action centers around a single maneuver by a squad of GIs in retaliation against the force of the German Siegfried line. Reese joins a group of weary GIs unexpectedly ordered back into the line when on their way to a rest area. While most of the men withdraw from their positions facing a German pillbox at the far side of a mine-field, half a dozen men are left to protect a wide front. By various ruses, they manage to convince the Germans that a large force is still holding the position. Then Reese leads two of the men in an unauthorized and unsuccessful attack on the pillbox, in which the other two are killed; and when the main platoon returns, he is threatened with court-martial. Rather that face the disgrace, and in an attempt to show he was right, he makes a one-man attack on the pillbox.

A singer goes to a small town for a performance before he is drafted.

Beautiful alien Amazonian women plan to conquer the world using an army of vegetable monsters. Dim-witted privates Philbrick and Penn bumble into a cave in search of atomic activity but collide instead with fierce carrot-topped tree mutants and their leaders, the 7-foot space sirens Prof. Tanga and Dr. Puna. This lavishly low-budget sci-fi romp has the bodacious aliens planning to overrun Earth with their vege-men army, but first they want the G.I.s to explain the meaning of love.

Out of hit ideas and seemingly in the twilight of his career, Broadway producer Russ Ward decides to give up the game. But when Russ lays off his nubile secretary, Ellie Brown, she shocks him with a declaration of love. Inspired, Ward commands playwright MacDonald to rewrite his latest show as a May-December romance starring Brown herself. Ward struggles to make a comeback as his ex-wife, Kathryn, plots to end his new relationship.

Before the U.S. Civil War rebel leader Luke Darcy sees himself as leader of a new independent Republic of Kansas but the military governor sends an ex-raider to capture Darcy.