Before going to their latest client meeting, Nick and Cody confront Murray about a new invention: a device that buzzes whenever someone lies. After unsuccessfully trying to convince Murray to disconnect the device, the guys proceed to the meeting. Once there, they meet up with television producer Jesse Wells and learn that their assignment is to protect Karl Novack, a guest scheduled to appear on the Les Carter show. Unfortunately, the guys arrive just as Novack, who is strangely singing nursery rhymes, commits suicide by jumping out a window. Afterwards, the guys decide to investigate Cullen-Davis, the company that Novack used to work for. However, Boz realizes that the only way he can bypass security is to get direct access to one of Cullen-Davis' computer terminals. Thereby, the guys convince Murray to sell his game ("The Box") to Dyna-Games, a subsidiary of Cullen-Davis. Reluctantly, Murray agrees and the guys are soon inside the Dyna-Games offices. The Boz then accesses the Cullen-Davis computer and feeds their records via modem to his computer on the Riptide. Before the guys can make it back to the Riptide, however, they are confronted by retired General Walker, Novack's former employer. Walker then explains what had been bothering Novack: In Vietnam, Walker and Novack were the only survivors of a skirmish that resulted in the death of thirty American soldiers. Unknown to the general, Murray's (lie detector) box is turned on and the guys learn that Walker is not telling the whole truth. Later, Les Carter also falls victim to the strange "nursery rhyme" malady. After catching the men that had drugged Carter and learning that they are with the East German consulate, the guys and Jesse go to Carter's house and find a tape containing a preliminary version of Novack's interview. The guys are then once again confronted by Walker's men (the East Germans). Fortunately, they manage to escape in the Mimi. As the episode ends, the tape is aired and the truth about the Vietnam incident is revealed: Walker and Novack had killed the other thirty men in order to avoid going on a "one way" mission. Walker responds to his public disgrace by committing suicide.

After a troubled girl named Cheryl Watson is forced to leave her baby daughter Katie at a church, Father Bob asks the guys to protect the baby. Realizing that Cheryl must be in serious trouble, the guys then decide to talk to Patricia, Cheryl 's half-way house roommate. Speaking to Patricia, they learn that Cheryl had been arguing over the phone with her boyfriend Phillip. Boz soon accesses the phone company records and learns that Cheryl 's boyfriend is working at the police department. Meanwhile, Father Bob is attacked by men seeking Cheryl and the baby. Fortunately, the guys arrive at the church in time to rescue Father Bob and to capture the assailants. Quinlan, acting unusually cooperative (because it was the Father who was accosted), soon informs the guys that the captured men are connected with the mob. The guys proceed with their investigation and are soon sneaking into the police department in order to discover the identity of Cheryl's Phillip. Their investigation is successful and they discover that Cheryl's boyfriend is Phillip Everett, a married police commander. Next, the detectives confront Everett. Although the commander denies any knowledge of Cheryl, the confrontation proves fruitful for afterwards the guys (via a tapped phone line) learn that Everett has been working with a mobster named Holland. Murray's phone tap also clues the guys in to a call from Cheryl. Thereby, the guys hear of Phillip's plans to pay Cheryl to leave town. Correctly theorizing that Phillip can not politically afford to let Cheryl jeopardize his career, Nick and Cody head to the intended meeting site. Therefore, the guys arrive just in time to rescue Cheryl from Holland's men. Unfortunately, when they return to the Riptide, they discover that two "police officers" have taken Katie. Another meeting between Everett and Cheryl is then set up. However, this time the guys are ready and Katie is freed. In the meantime, Murray interrupts one of Everett's press conferences and provides the press with evidence that incriminates both the police commander and Holland. Later, the guys, who have grown quite attached to Katie, are saddened when Cheryl decides to move back to her parents' home in Michigan.

Nick decides to attend his 15th year high school reunion and is surprised when the festivities are interrupted by masked men wielding automatic weapons. After the armed men leave, Nick is upset when he is unable to get any answers from his former high school football teammates, the men who appeared to have been targeted by the intruders. Rather than let the issue drop, Nick decides to speak to Sid Clover, his high school football coach. However, Nick is only left with more questions when he comes across the dead body of former football teammate Deke Martin. Nick's other classmates then reveal that they have been running a drug operation with Clover. They also explain that mobster Frank Moran killed Deke and arranged the reunion assault in hopes of convincing them to give up their drug operation. Out of loyalty for their high school friendships, Nick decides to let his former team members turn themselves into the police. That night, masked men board the Riptide and grab the guys. Fortunately, they manage to escape. The detectives then learn that Clover and company did not turn themselves in. Nick and the guys investigate and soon discover that the drug dealing classmates recently purchased forged passports. Later, Nick is surprised when he receives a call from Clover asking him to meet them on their boat. Nick goes to the meeting and is disgusted when they offer to cut him in on the action. However, his disgust soon turns to sadness when the boat explodes right after he leaves. Later, the guys review the boat incident and realize that it was a set up. (Cody postulates that it had made no sense for Clover to have made the offer to Nick to get involved in the operation for if they had thought he would get involved with a drug deal, they would have made the offer years ago.) Therefore, the detectives follow Moran and witness a meeting between the mobster and Beeber, one of the supposedly dead classmates. The guys then learn that Beeber has switched sides and is now helping Moran. (The detectives realize that the classmates only pretended to die in hopes of escaping from Moran's wrath.) The guys, deciding to interfere with Moran's plans, soon stop the mobster and Beeber from killing the other drug dealing classmates. [Note: With relatively few modifications, this episode was remade during a writer's strike as the Sonny Spoon episode entitled "Never Go To Your High School Reunion."]

For their latest case, the detectives are hired by Fred Cushing to find out who has been stealing valuables from the customers of a posh beach club. Once at the club, Cody is pleased to learn that Byron Monk, the lifeguard, is his old roommate from the mid-70's. Unfortunately, the case then takes a strange turn when a man pretending to be drowning tries to kill Cody, while the detective is posing as a lifeguard. Meanwhile, the guys notice Byron romancing quite a few of the club's female customers. Of special concern to Cody is Byron's possible relationship with a sixteen year-old girl named Candace. Later, figuring that Byron was the actual target of the attempt on Cody's life, the guys visit Monk's apartment. Thereby, the detectives are in place to catch a girl named Melissa Bellencore breaking into the apartment. Melissa then accuses Byron of blackmailing her with compromising pictures of the two of them having an affair However, the guys soon discover that, although Byron did have an affair with Melissa, it was actually someone else who took the pictures. The guys soon locate the camera and learn the identity of the blackmailer: a private investigator named Edward Steiger. After capturing Steiger, the guys are somewhat confused when another attempt is made on Byron's life. Meanwhile, while staking out the beach, Murray finds out that a small dog has been "collecting" and burying items left lying around the beach. Having "captured" the beach club burglar (the dog), the guys focus their attention on finding out who is trying to kill Byron. (Cody also takes the opportunity to criticize Byron for his careless disregard for women; especially after Candace tries to commit suicide.) The detectives soon realize who has been trying to kill Byron when they discover that the lifeguard is now dating Lizzie, Cushing's ex-girifriend. Cushing is soon stopped but, unfortunately, not until after the beach club manager is able to kill Byron.

The guys are walking down the pier when they see two guys "roughing up" an elderly bag lady. The detectives come to her rescue and soon discover that she is actually Helen Howell, a famous actress who disappeared fifty years ago. Helen then explains how she had been placed in the sanitarium by a man named Danny Sutherland after their relationship went bad. Furthermore, Helen theorizes that the two men who hassled her were after her hidden deed to Pier 56. Deciding to help Helen, the guys realize they need to recover the deed from inside the fireplace of her former mansion (which is now home to James Sutherland, Danny's son). The guys then disconnect Sutherland's cable, enter the house as cable repairmen, and recover the deed. Murray then poses as the new owner of Pier 56 in order to draw Sutherland out into the open. Unfortunately, James goes after Helen instead of the Boz. The guys then board the Mimi and head to Sutherland's house. However, before they can rescue Helen, James manages to flee. In the process, James kills Danny when the older Sutherland objects to his son's methods. Fortunately, with Cody following in a borrowed limousine and Nick and Murray providing airborne reconnaissance, James is soon captured and Helen is freed.

After beauty contestant Charleen West receives threatening calls, the guys are hired to provide security for the Miss King Harbor Beauty Contest. The threats soon intensify when a mannequin (that has a knive stabbed into it) is left in Charleen's dressing room. Then, after learning that the pageant is being hosted by former game show host Eddie Caruthers, a man who previously put a female friend in the hospital, Nick believes he has found the guilty party. The guys confront pageant manager Chuck Davis with their suspicions but are instructed to find more proof. Unfortunately, while the guys are searching Eddie's dressing room, Caruthers manages to convince Charleen to go on a date. Afterwards, Charleen is soon found beaten and unconscious in the same room as a murdered Caruthers. Later, when an analysis of the previously recorded threatening calls reveals that Eddie was the caller, Quinlan arrests Charleen for the host's murder. Unwilling to accept Charleen's guilt, the guys sneak into Caruthers's apartment and discover that Eddie had been making unexplained bank deposits of $10,000 a month. At Caruthers' funeral, the guys meet Bob Eubanks and Gene Rayburn and learn that Eddie and Davis had been involved in the quiz show scandals of the 60's. The guys investigate further and discover that Caruthers did not make the phone calls but rather Davis used spliced together tapes in order to frame the deceased pageant host. Adding to the guys case against Davis is the brand of wine that was found at the murder scene. The detectives confront Davis about Caruthers' strange deposits (which were blackmail payoffs from Chuck). Confronted, Davis attempts to escape on a nearby boat but is captured. As the episode ends, Charleen wins the beauty pageant.