In pre-World War II Europe, the daring and spirited journalist Augusta “Gusto” Nash endeavors to rescue American pilot Tom Martin from a Spanish prison, where he awaits execution. Disguised as his wife, she uses her cleverness and charm to navigate a series of bureaucratic obstacles. Her plan successfully persuades the authorities to release Tom into her custody. Delighted by his unexpected reprieve, Tom is initially skeptical of Gusto's intentions but soon finds himself captivated by her boldness and wit. As they cross Europe together, the pair constantly bicker yet share an undeniable chemistry. Their journey, driven by necessity, unwittingly sets the stage for blossoming affection amidst uncertainty and travel constraints.

As they progress on their odyssey across war-torn Europe, Gusto and Tom are embroiled in a series of adventurous escapades that include evading enemy forces and witnessing the mounting tensions that herald a continent on the brink of global conflict. Their initial antagonism begins to fade as camaraderie and mutual respect build between them, revealing deeper, unexpected connections. While Gusto remains focused on chronicling events for her newspaper, Tom wrestles with his own sense of purpose and newfound feelings. The story elegantly balances elements of romance and suspense against the looming backdrop of impending war, leaving the protagonists caught between personal aspirations and the overwhelming tide of history. The film interlaces humor with moments of poignancy, reflecting the resilience of human spirit amid the turbulence of shifting landscapes and uncertain futures.