Overview: COLUMBO mistakes NAM for MUI, and starts to confide in her. COLUMBO points out to SCOTT that he will not be prosecuted that he agrees to present the evidence against ON, as guaranteed by the Secretary for Security. COLUMBO returns home and discovers a note left by EVA, in which she mentions that she will be returning to England soonish. ON sneaks into SCOTT’s bedroom, so SCOTT reveals to him how COLUMBO is going to fight back against them. LUNG discovers that ON has booked a flight to London which is scheduled for departure at 3 pm. COLUMBO cracks the safe with his pistol and takes out the accounting records from it. He asks LUNG to apply for a warrant with the accounting records while he himself will hurry to the airport to intercept ON. EVA is shocked to see ON on the plane. To make the plane return to Hong Kong, she pretends to be having a sudden heart attack. ON has hijacked the plane by taking EVA hostage……