Related Clues:

• Watery 911
• Foundering plea
• "Help!"
• 'Help us!'
• [I'm in trouble here!]
• Three short, three long, three short
• Familiar telegraphy sequence
• Ship's distress signal
• Desperate call
• Worrisome letters
• ''Gilligan's Island'' signal
• Castaway's sand scrawl
• Song on the "Mamma Mia!" soundtrack
• Song on the 'Mamma Mia!' soundtrack
• Cry when going down?