Popeye the Sailor (1960)

S1E22 Sea No Evil

While Popeye and Olive unwind on their new vessel, "The Miss Olive," a sneaky thief swims below the surface, swiping their belongings without them noticing. Fortunately, Brutus's boating store offers a seemingly limitless selection of replacements for their stolen goods. As the couple enjoys their time at sea, they remain blissfully unaware of the cunning criminal lurking beneath, ready to make off with more of their possessions.