Simon Banks and his son Daryl disappear from an anti-drug conference in Peru. Blair insists on going with Jim to rescue the Captain and his son, even if it means he has to jump out of an airplane and face drug runners.
When the car of Ellison's partner, who went missing a few years ago while he and Ellison were working on the kidnapping of the son of a wealthy, is found. But everyone seems heel bent on proving that he ran off with the money. Ellison believes that is not true. But an investigation reveals that Ellison could have been his accomplice and Ellison can't prove it. So he tries to find who the kidnapper is.
Cascade Police tries to stop a gang war between the Yakuza and a local biker gang by hosting a summit meeting. The leader of the bikers is poisoned and the Yakuza's female lawyer is suspected. Ellison discovers she's an undercover office.
A prostitute witnesses the murder of her pimp at the hands of a hired hitman known as the Iceman. Ellison and Sandburg have to provide protection for the woman while trying to figure out which of her clients is the hitman's target.
Ellison and Major Crimes work with a replacement bomb expert investigating a series of bombings targeting black churches. Sandburg tries to help Joel Taggart, Cascade's bomb expert, who has developed a phobia about explosives.
Ellison experiences a dramatic increase in his hearing after having wax blockage removed from his ears. As a result he hears the murder of an undercover vice cop, but has difficulty in convincing the internal affairs officer.
Naomi's psychic friend, Charlie Spring, is hired by a distraught mother to find her kidnapped child. Ellison doesn't believe that Spring has psychic abilities and doesn't want Charlie involved with this case.