ALAN SHORE AND DENNY CRANE SADDLE UP AT A DUDE RANCH BUT FIND THEMSELVES AT ODDS WITH THEIR FELLOW HORSE ENTHUSIASTS AND IN COURT, AND SHIRLEY SCHMIDT DEFENDS THE MURDEROUS CATHERINE PIPER AFTER SHE ACCIDENTALLY BLOWS UP HER DOCTOR, ON ABC'S "BOSTON LEGAL"

Betty White Guest Stars as the Murderous Catherine Piper

"Happy Trails" � Alan Shore and Denny Crane take a breather from the office and saddle up at a Dude Ranch in Utah. But the two city slickers soon find themselves at odds with their fellow horse enthusiasts and may need to call on the always irritating attorney Melvin Palmer � who also happens to be at the ranch. Meanwhile, Shirley Schmidt defends the murderous Catherine Piper (Betty White) when she unintentionally blows up her doctor after setting his office on fire for prescribing medication that almost killed her, on "Boston Legal," MONDAY, OCTOBER 27 (10:01-11:00 p.m., ET) on the ABC Television Network.

"Boston Legal" stars James Spader as Alan Shore, John Larroquette as Carl Sack, Christian Clemenson as Jerry Espenson, Tara Summers as Katie Lloyd, with Candice Bergen as Shirley Schmidt and William Shatner as Denny Crane.

Guest starring are Betty White as Catherine Piper, Christopher Rich as Attorney Melvin Palmer, Grainger Hines as Jensen, Jay Thomas as Ian Hoberman, Rachelle Carson-Begley as Irene Hoberman, David Doty as Judge Ephraim Woods, Michael Ensign as Judge Paul Resnick, Currie Graham as A.D.A. Frank Ginsberg, Christopher B. Duncan as Dr. Jeremy Marley and Robert Cesario as Dr. Lee Watson.

"Happy Trails" was written by David E. Kelley & Corinne Brinkerhoff and directed by Mike Listo.

"Boston Legal" is broadcast in 720 Progressive (720P), ABC's selected HDTV format, with 5.1-channel surround sound and Spanish subtitles via secondary closed captioning. A TV parental guideline will be posted closer to airdate.