Earl Gianelli, an aged wrestler who hires Magnum to find his long lost son, puts the private investigator on a bloody trail of revenge.

Magnum is working on a case for assistant D.A. Carol and is forced to face a difficult dilemma concerning the guilt of innocence of the suspected murdered who is guilty of another crime.

After Magnum has just been put through the wringer at the Hall of Records, he is very reluctant but finally agrees to help one of the clerks, a woman named Ms. Jones, who is looking for her missing husband.