The young son of a rich man is kidnapped. Five-O and HPD observe the scene where the kidnappers are to pick up the money. Five-O's Kono corners the kidnappers but ends up being captured. He sets the boy free but is beaten by the kidnappers, who now are demanding ransom for release of the Five-O member. Written by
Did You Know?
This episode demonstrates how a call was traced through an old mechanical switching system. The technician literally had to trace the wires through each switch (1 for each digit of the phone number) to find the line it came in on. This is why the caller had to stay on the line for 5 to 10 minutes for the call to be traced. Success depended on a very skilled technician to complete the trace quickly. With a modern digital switch, everything is run by computer. The computer has to decode the dialed number so that it 'knows' who is calling and who is being called even before the phone rings. See more
The ransom message sent to McGarret is on a tiny reel-to-reel tape. He asks Danny to set it up on the tape player. When next seen the reel has not only become a larger size, but much more tape has been added to the reel as well. The short ransom message is also apparently somewhere in the middle of the bigger tape, given how much is shown on the take-up reel. See more
[Timmy doesn't know who Kono is
I'm a friend.