The UNCLE agents free themselves and get control of the UNCLE plane just before it runs out of fuel. Solo and Kuryakin, accompanied by Sandy True, resume their search for the late Dr. True's formula. They are dogged by Randolph, a Thrushman, accompanied by his 'karate killers.' They all eventually wind up at a secret Thrush installation where the criminal organization plans to use Dr. True's process to produce gold on a massive scale.