Extreme Danger (Hardy Boys Undercover Brothers Series #1)

ATAC BRIEFING FOR AGENTS FRANK AND JOE HARDY

MISSION: To find the mastermind behind a possible attack at the Big Air Games.
LOCATION: Philadelphia, PA.
POTENTIAL VICTIMS: Top extreme athletes in the country. Thousands of spectators.
SUSPECTS: There may be a group of extremists working together. There may be just one.