Mrs. Gotrocks is just opening her safe when a shadowy figure tries to grab her entire collection of diamonds. She is able to close the safe just in time to save them. She places a call to the Finkerton Detective Agency which in turns calls Inch High. He has Gator retrieve the electric hushmobile so they can begin protecting the jewels. When Mrs. Gotrocks shows Inch High the diamonds the lights go off and the jewels disappear. Inch High is now on an investigation to find the jewels before they disappear forever.
The shipyard has become a magnet for criminals and thugs. The biggest problem is a group of smugglers using Zappos Imports as a cover for their operation. Inch High is able grab one of the crates but discovers that it is empty. Inch High is told to go on vacation and stay away from the investigation but comes up with a clue and investigates anyway. What are the empty crates for and will Inch High be able to figure it out in time?
The great conductor Marieso Manufique is about to perform his last concert before he retires. Inch High has noticed a pattern of crimes when compared to where the symphony has been performing. Inch High is running out of time to prove his case since Manufique plans to leave the country directly after his last show.