Ironside S08 E06 Set Up: Danger!

"«The chief of detectives!»"

When Ed returns from a holiday he finds the Chief missing, and a series of obscure clues pointing to the suggestion that he has been kidnapped. In truth Ironside has been waylaid by an old enemy, a mobster seeking his help to solve a murder, but a gang war is brewing and the Chief needs his team to find him in time to stop it erupting unchecked.