The Hardy boys join their father, Fenton on an undercover mission in Africa, to investigate a multi million dollar smuggling ring, and discover the fate of a missing U.S. Customs official who was on the trail of the gang before he disappeared.

The poachers are killing hundreds of endangered animals, for their smuggling operation, and the Hardys determined to shut them down.

Frank and Joe discover that the Customs official was killed, and are closing in on the gang, which they have discovered is Phoenix Enterprises, when their own father is killed in a tragic bombing. The brothers discovered a clue that leads them to believe that Phoenix Enterprises is based out of Stockholm, Sweden, and they vow to go there to track down their fathers killers