Frasier and Niles are volunteered to participate in a bike-a-thon for AIDS research. Unfortunately, neither of them can ride a bike and both prove slow learners. Elsewhere, Martin is angry to find out that Mrs Moon meddled in his love life.
Frasier and his neighbour Cam attempt to put an end to their feud because of their parents' supposed love affair. Meanwhile, Niles tests out the Segway, an experimental new human transporter.
The BAU takes charge of a hostage situation at a law firm in D.C., where Matt Simmons' wife, Kristy, works.
A mock trial adviser dies during a competition; Jane is concerned that Angela may be hiding financial issues; Tommy hires a lawyer to settle his claim against the Storrow Center.
Lieutenant Stillman is still haunted by the unsolved case of an eight-year-old boy who was murdered in 1980 and asks Rush to investigate.