Seal Team Seven #15: Ambush:

On a Phillipines bus tour, 60 tourists are taken hostage by separatist rebels who won't release anyone until a ransom is paid. After a failed rescue attempt by Phillipine army units, the government is ready for a new strategy--namely the SEALs. Now, Lieutenant Commander Murdock and his team must brave the jungle, free the hostages, and take down the separatist leader.