Fitzhugh and the women are captured and brought to SID HQ. Steve, Dan, and Mark follow, and witness men trying to break in. One is wounded and they manage to escape. Kobick then contacts Steve with an offer of amnesty. When Steve calls back from an empty house, Kobick traces the call and traps Steve and Mark anyway. He lets Fitzhugh and Valerie go as a sign of good faith, as he needs the men to trace luminous ink through the sewers.
Rebel counterfeiters are trying to bring down the government by flooding the economy with phony money. Steve and Mark reluctantly agree, and then try to draw things out so Dan and Fitzhugh can break Betty out. They get captured as well, and the men overhear Kobick over the radio boasting he won't honor his deal. They team up with the counterfeiters, who need to get at a safe in Kobick's office with incriminating evidence.
Steve draws off Kobick with a phony location, then goes back and manages to get the safe open. The rebels sneak in, turn off the force field imprisoning the little people, and escape as they leave a bomb to destroy the evidence. Grateful, they drop the Earthlings off.