Related Clues:

• ''Anyone ___?''
• Words suggesting serious consequences
• "What __ is new?"
• 'If all -- fails ...'
• ''What,'' ''who,'' ''how,'' and ''where''
• "Do it ___!"
• End of an ultimatum
• If that doesn't work
• ''If all ___ fails . . .''
• Goon's last words
• ''Or ___!'' (veiled threat)
• "... or __!"
• ''If all __ fails. . .''
• ''Where'' attachment
• Ultimatum's ultimate word