As Barney taints the water system with a mind-numbing drug, Jim is captured and put on trial, where he must discredit an enemy scientist.

In the Middle East Willy and Barney infiltrate a chemical plant to gain access to Dehominant-B, a quick-acting lethal gas. Barney is exposed to Dehominant-A while trying to get to the computer and crippled - Willy escapes and Barney is captured. Barney is interrogated and only has four hours to live. The team find out that Dr. Jerry Carlin, a dropout, is the only other person with the skills to access the computer. When Carlin rejects the team's appeal for help, Jim and Paris frame Carlin's girlfriend and threaten to keep her in jail unless he helps them. Dana provides a distract and Paris takes the head scientist Vazan's place and have Barney first fake a confession implicating the technicians and then his own death - they get Barney to the autopsy room where Doug revives him in the nick of time. Jim and Carlin take the incriminated technicians' place and Carlin manages to ruin the Dehominant and erase the computer, then everyone escapes with Vazan.

A private detective, Edison, has pictures incriminating Syndicate boss Vochek in a murder and is using them to blackmail the mobster. The IMF need to get the pictures to get Vochek convicted, but Edison has been convicted and is in prison for six months. Since Edison is unaware that his accomplice Leona is dead, Casey takes her role while Jim is Edison's cellmate and helps him to escape, then fake their deaths. Casey-as-Leona tells Edison she sent the evidence to the D.A. after she heard Edison was dead, and Jim convinces Edison she is keeping the pictures to pull off her own blackmail scheme. When Edison confronts her, Jim fake-shoots her but she calls a confederate to get the film - desperate, Edison reveals the location himself as he goes for it, and ends up arrested.