London helps Tim Reagan, an escapee from Millbank Federal Prison, to reach a city discotheque, where Reagan once worked with two partners.
One of his partners, Sal, murdered the other partner, who had learned of Sal's mob money laundering operation.
Sal then falsely implicated Reagan in the killing, and Reagan was tried for murder and jailed.
Now, Reagan wants to find evidence to prove his innocence and Sal's guilt. Sal catches Reagan searching his office and orders his henchmen to kill Reagan.
London activates the disco lights and music to confuse Sal's men and guides a policeman to the disco to interrupt the attempt by Sal's men to murder Reagan.
A police Lieutenant arrives to ask permission to search Sal's office. Sal agrees, not wanting to appear guilty. London finds a videotape with strange, numerical markings.
The Lieutenant inserts the tape into a videocassette player and discovers money laundering records.
Reagan is exonerated, and Sal and his men are arrested.