Now updated for the new millennium, Frank and Joe are given modern makeovers, with new friends, new enemies, and new sets of wheels. Written in the alternating voices of Frank and Joe, these all-new mysteries lets readers follow them along on every case. 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.