The Secrets of the Engine Part 3.During the final days of the term, Dr. Chezko, an engineer and old friend of Speed Racer's, arrives with a chamber that will finally run the Mach 6 on purely natural energy - its final piece - and asks Speed's permission show it off to the academy. Zile, returning undercover as a janitor, works with Annalise to steal the chamber and embarrass Speed by replacing it with a double. Meanwhile, Spritle plans a family bonding trip to his camping retreat for the break. Zile and Annalise steal the Chezco chamber and keep it hidden until they can meet with the head of the committee; Speed and X sneak into Zile's tower. Once they do, Conor and Lucy both return to help Speed and X regain the Chamber. But once they do, Zile and Annalise do whatever they can to get it back. Before Speed can activate the chamber he must go a speed of 820 miles per hour. After he does this the chamber won't work until they make a special cloth...