Set in a World War II army training camp, the story follows Private First Class Alvin Korwin and Sergeant Vic Puccinelli as they navigate their military duties and personal dramas. Alvin, a hapless and clumsy soldier, constantly finds himself in absurd and comical situations, struggling to get things right. His primary goal is to get a weekend pass to see his wife and new baby. Meanwhile, his friend and superior, Vic, is a smooth-talking sergeant with dreams of becoming an officer. However, his rise through the ranks is burdened by the constant need to bail Alvin out of trouble. The two characters' contrasting personalities lead to a series of hilarious misadventures as they clash with their superiors and fellow soldiers.

Amidst their chaotic military routines, Alvin and Vic deal with various challenges, including the attention of smitten nurses, mistaken orders, and the pursuit of a musical career for Vic. The film's humor is driven by the interplay between Alvin's slapstick antics and Vic's charming wit. While the plot is lighthearted and comedic, it also captures the camaraderie and enduring bond between soldiers during wartime. The duo's journey through the training camp highlights themes of friendship, determination, and resilience, creating a blend of laughter and heartfelt moments as they navigate the ups and downs of army life.