It's literally a race against the clock for the BAU to capture the vigilantes behind a series of attacks taking place every 27 minutes in the nation's capital. Prentiss and Unit Chief Andrew Mendoza lead the effort to identify the Unsubs and what's motivating them.
When Horatio finds another corpse with missing eyes, everything points to his nemesis, 'The Taunter' except he has an airtight alibi.