Matt Sherman (Cary Grant) is skipper of the U.S.S. Sea Tiger, a submarine forced out to sea by an enemy air attack. He is less than impressed by his newly-arrived junior officer, Lieutenant Nick Holden (Tony Curtis), who nevertheless manages to scavenge the spare parts and supplies needed to keep the sub in action. Matters are complicated when five stranded army nurses are taken on board, and assist with the renovation. Through a series of mishaps, Sherman's command ends up being painted a conspicuous shade of pink!