S2·E21 Rock'n Gadget

General Sir thinks MAD might kidnap global rock and roll superstars "The Mummies Boys", so Gadget is sent to protect them. Since the Boys are Penny's favorite band, she tags along, unaware that Dr. Claw has bigger plans. Backstage at the stadium for their soon-to-air global concert, Penny overhears their new Soundman talking to Dr. Claw about putting a mind control signal into the broadcast which will be watched by about 2 billion people. He spots Penny and leaves her tied up in a trunk. Meanwhile, the opening act "Pharoah's Men" is booed offstage so they load up their bus and leave taking Penny in the trunk with them. Turns out Penny's wristwatch still has the laser from the original series so she cuts herself free then persuades the band to go back and save the crowd who rejected them. Meanwhile, the Soundman arranges to eliminate Gadget with the show's special effects during the concert and as always Gadget is oblivious to the danger.